VANDE WALLE, Chief Justice.
[¶ 1] Ronald J. Sjostrand appealed a judgment affirming a North Dakota Workers Compensation Bureau order adopting an administrative law judge’s recommendation that Sjostrand forfeit all additional benefits for misrepresenting his physical condition and abilities. We affirm.
[540]*540I
[¶ 2] While employed by the University of North Dakota as a landscaper, Sjost-rand was injured in an automobile accident in 1995. Sjostrand filed a claim for workers compensation benefits. The Bureau accepted the claim and paid benefits. Sjostrand was terminated from his position in January 1997. Sjostrand began a retraining program in September 1997 to become a health information technician. Sjostrand developed fibromyalgia as a result of his injury and began consulting Dr. Yue for treatment in January 1998. Upon his request and the approval of Dr. Yue, Sjostrand reduced his classload in August 1998. Sjostrand discontinued his educational program in October 1998. After receiving an anonymous tip about Sjost-rand’s physical activities in April 1999, the Bureau began an investigation, which included videotaped surveillance. Sjostrand completed an independent medical examination at the Bureau’s direction in September 1999.
[¶ 3] The Bureau issued a notice of intention to discontinue further benefits (“Notice”) dated November 22, 1999, advising Sjostrand it had determined he violated N.D.C.C. § 65-05-33 with a false claim or a false statement, and all further benefits would be forfeited after September 13, 1999. The Notice contained a five-page summary of the evidence the Bureau was relying upon, including: (1) The Bureau received an anonymous report that Sjost-rand had been engaging in physical activities beyond what his treating physician has reported him capable of doing; (2) Sjost-rand’s employment with the University of North Dakota was terminated for an inability to perform the essential functions of the position; (3) “During surveillance from May 11, 1999, through May 25, 1999, from July 14, 1999 through July 17, 1999, and September 12, 1999, through September 25, 1999, you were observed ... performing very rigorous physical activities, which required physical abilities beyond what Dr. Yue has stated you are capable of performing;” (4) a description of activities recorded in the videotaped surveillance; and (5) the following additional evidence:
On September 13, 1999, per the Bureau’s request, Dr. Gregory Peterson completed an Independent Medical Evaluation (IME). Dr. Peterson documented your current symptoms as follows: Mr. Sjostrand reports that his pain problems are very “mutable.” “Today my wrists, my arms, and my feet bother me.” He notes that his upper back is “generally worse.” Other times he has pain, “absolutely from the tips of my toes on up.” Mr. Sjostrand reports that all activities aggravate his pain. Other than medications, the only alleviating activity is “my recliner is as good as it gets.” On the pain drawing, there are listed different qualities of discomfort, including “pins and needles, stabbing, burning and deep ache.” Mr. Sjostrand has arrows pointing to all four of these qualities and indicates, “all over.”
Upon review of your medical records and completion of his examination, Dr. Peterson concluded the following: “Mr. Sjostrand has generalized, variable, nonspecific pain complaints which are markedly out of proportion to objective findings. Findings on examination suggest a conscious or unconscious exaggeration of pain behaviors.”
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On October 21, 1999 ... Dr. Peterson reviewed the surveillance videos of you from May 1999, July 1999, and September 1999.
By letter dated October 22, 1999, Dr. Peterson made the following comment regarding his review of the surveillance [541]*541■videos. “On the surveillance videos, I observed Mr. Sjostrand demonstrating excellent neck range of motion without apparent pain. He had full functional use of his arms, performing very rigorous physical activities. The capabilities demonstrated on the surveillance videos clearly demonstrate that he misrepresented his abilities during my interview with him. The findings on the videotape also clearly demonstrate that Mr. Sjostrand willfully attempted to deceive me regarding his physical capabilities on physical examination. Based oh my review of Mr. Sjostrand’s surveillance video, I believe that he is capable of performing all duties required of a landscaper (his previous occupation).”
The Bureau sent Sjostrand an amended Notice, dated November 24, 1999, advising him his “disability benefits will be terminated due to the reasons outlined in the 11-22-99 notice effective 12-15-99.” By letter of December 17, 1999, Sjostrand’s attorney asserted “the Bureau’s decision is “wrong’ ” and requested “a copy of Mr. Sjostrand’s entire file at the Bureau.”
[¶ 4] On February 2, 2000, the Bureau concluded Sjostrand made false statements and ordered forfeiture of all additional benefits and reimbursement for any benefits paid based upon the false statement. On February 21, 2000, Sjostrand requested a rehearing, demanded the immediate appointment of an administrative law judge (“ALJ”), and demanded the Bureau conduct no further investigation or discovery.
[¶ 5] An administrative hearing was held on June 23 and July 14, 2000. On November 22, 2000, the ALJ issued recommended findings of fact, conclusions of law, and the following forfeiture order, in part:
Ordered, that pursuant to N.D.C.C. § 65-05-33, Ronald Sjostrand shall forfeit any and all additional benefits in connection with his claim for workers compensation benefits, including disability benefits, medical expenses, vocational rehabilitation benefits, and permanent partial impairment benefits; and it is further
Ordered, that upon these proceedings the North Dakota Workers Compensation Bureau shall not have reimbursement of any workers compensation benefits paid to Ronald Sjostrand.
On December 27, 2000, the Bureau adopted the AL J’s recommendation.
[¶ 6] Sjostrand appealed to the district court, which affirmed the Bureau’s decision. Sjostrand, in his appeal to this Court, contends: (1) termination of his benefits without an opportunity for an evi-dentiary hearing deprived him of due process of law; (2) the Bureau failed to show he has either willfully or materially violated N.D.C.C. § 65-05-33; (3) the Bureau erred in relying on a “preponderance of the evidence” standard, rather than a “clear and. convincing evidence” standard of proof; and (4) the delays and continuing investigations by the Bureau after issuing the Notice of November 24, 1999, constitute impermissible adversarial conduct and endemic institutional delay requiring reinstatement of all future benefits and .reimbursement of his costs and attorney fees.
II
[¶ 7] We recently again outlined the scope of review of the Bureau’s decisions under N.D.C.C. §§ 28-32-19 and 28-32-21 1:
[542]*542On appeal, we review the decision of the administrative agency, rather than that of the district court, although the district court’s analysis is entitled to respect. Snyder v. North Dakota Workers Comp. Bureau, 2001 ND 38, ¶ 7, 622 N.W.2d 712. Under N.D.C.C. §§ 28-32-19 and 28-32-21, which, effective August 1, 2001, are codified at 28-32-46 and 28-32-49, we affirm the Bureau’s decision unless its findings of fact are not supported by a preponderance of the evidence, its conclusions of law are not supported by its findings of fact, its decision is not supported by its conclusions of law, its decision is not in accordance with the law or violates the claimant’s constitutional rights, or its rules or procedure deprived the claimant of a fair hearing. Negaard-Cooley v. North Dakota Workers Comp. Bureau, 2000 ND 122, ¶ 7, 611 N.W.2d 898. We exercise restraint in deciding whether the Bureau’s findings of fact are supported by a preponderance of the evidence, and we do not make independent findings or substitute our judgment for that of the Bureau; rather, we decide whether a reasoning mind reasonably could have decided the Bureau’s findings were proven by the weight of the evidence from the entire record. Renault v. North Dakota Workers Comp. Bureau, 1999 ND 187, ¶ 16, 601 N.W.2d 580. Questions of law, including the interpretation of a statute, are fully reviewable on appeal from a Bureau decision. Lawrence v. North Dakota Workers Comp. Bureau, 2000 ND 60, ¶ 11, 608 N.W.2d 254.
Paul v. North Dakota Workers Comp. Bureau, 2002 ND 96, ¶ 6, 644 N.W.2d 884.
Ill
[¶ 8] Sjostrand contends the Bureau’s termination of his disability benefits without first providing an opportunity for an evidentiary hearing violated his right to due process of law.
[¶ 9] “[U]nder our state statutes, the continuing right to disability benefits under the Worker’s Compensation Act is a ‘property’ right protected by the Due Process Clause.” Beckler v. North Dakota Workers Comp. Bureau, 418 N.W.2d 770, 772 (N.D.1988). This Court recognized the importance of disability benefits to a recipient: “Continuation of disability benefits is significant to those who are entitled to them. By definition, disability benefits are paid while the claimant is unable to work.” Id. at 774. However, this Court said:
In contrast, eligibility for disability benefits depended on a medically determinable impairment, a subject more sharply focused and more easily documented than the typical entitlement to welfare. Thus, the potential value of an oral presentation or evidentiary hearing before deprivation of disability benefits was substantially less than in the case of welfare benefits.
Id. at 773. This Court held a recipient of disability benefits must be given an opportunity to respond to termination of benefits before termination, but need not be given a prior evidentiary hearing if there is a timely post-termination hearing:
While Beckler must be accorded an opportunity to respond to the termination of disability benefits, we do not expect a pretermination evidentiary hearing with an occasion to confront witnesses. In our view an evidentiary hearing before termination would unduly burden the governmental interest because medical records will usually resolve whether the claimant can work. Rather, we believe that opportunity to respond should be limited to a written submission as an initial check against an [543]*543erroneous decision. See Cleveland Board of Education v. Loudermill[, 470 U.S. 532, 105 S.Ct. 1487, 84 L.Ed.2d 494 (1985)], supra; Goss v. Lopez[, 419 U.S. 565, 95 S.Ct. 729, 42 L.Ed.2d 725 (1975)], supra; Mathews [v. Eldridge, 424 U.S. 319, 96 S.Ct. 893, 47 L.Ed.2d 18 (1976)], supra. In this respect our holding rests in part on the Bureau conducting a timely post-termination evidentiary hearing and on the Bureau’s authority to award retroactive disability benefits.
Beckler, at 775.
[¶ 10] Sjostrand asserts “there simply is no constitutionally permissible way to allow the Bureau to terminate disability benefits unless it first provides an eviden-tiary hearing,” arguing “recognizing the burden of proving ‘fraud’ is clearly upon the Bureau and that such proof can be rarely ‘proven directly’ but ‘usually must be inferred from conduct and circumstantial evidence,’ due process mandates a formal evidentiary hearing prior to termination of benefits.” This Court, however, has allowed the Bureau to terminate disability benefits without a prior evidentiary hearing for false statements under N.D.C.C. § 65-05-33. See Jacobson v. North Dakota Workers Comp. Bureau, 2000 ND 225, 621 N.W.2d 141; Stewart v. North Dakota Workers Comp. Bureau, 1999 ND 174, 599 N.W.2d 280. In Stewart, the majority opinion outlined the due process elements required for terminating disability benefits without a prior eviden-tiary hearing:
[Wjorkers compensation disability benefits could be discontinued without a pre-termination hearing only when there were “elaborate” pretermination procedural safeguards and a right to a timely post-termination evidentiary hearing. Beckler, at 773-75. The pretermination procedure must include, at a minimum, pretermination notice of the contemplated action, a summary of the evidence supporting the proposed termination, and a pretermination opportunity to respond in writing to the alleged grounds for termination. Id. We have consistently reiterated that due process requires these pretermination protections, including a summary of the. evidence.
Stewart, 1999 ND 174, ¶ 12, 599 N.W.2d 280.
[¶ 11] We are not persuaded we should overrule, and we therefore adhere to, our decisions holding disability benefits may be terminated under N.D.C.C. § 65-05-33 without a prior evidentiary hearing if the due process elements specified in Stewart are provided. We conclude the Bureau’s termination of Sjostrand?s disability benefits under N.D.C.C. § 65-05-33 without first providing an opportunity for an evi-dentiary hearing did not violate .his right to due process of law.
IV
[¶ 12] Sjostrand contends the Bureau failed to show he willfully or materially violated N.D.C.C. § 65-05-33, arguing (1) “The Bureau has not found that Sjostrand made any ‘false statements’ but, rather, that he ‘consciously exaggerated .his pain behaviors;”’ and (2) “Surveillance videotapes should have been excluded from the evidence or, if included, given little weight.”
A
[¶ 13] Section 65-05-33, N.D.C.C., provides, in part:
1. A person who claims benefits or payment for services under this title ... is guilty of a class A misdemean- or if the person ... does any one or more of the following:
-, a. Willfully files a false claim or makes a false statement in an attempt to [544]*544secure payment of benefits or payment for services.
b. Willfully misrepresents that person’s physical condition, including deceptive conduct which misrepresents that person’s physical ability.
The statute provides for reimbursement of benefits paid and forfeiture of additional benefits for violation of the statute. What is now codified as N.D.C.C. § 65-05-33(l)(b) was adopted in 1997, effective August 1, 1997. 1997 N.D. Sess. Laws ch. 534, § 4.2
[¶ 14] After citing Wanstrom v. North Dakota Workers Comp. Bureau, 2000 ND 17, ¶ 7, 604 N.W.2d 860, where we reiterated that, unless otherwise provided, statutes in effect at the time of an injury govern workers compensation benefits, Sjostrand contends in his brief:
If the 1997 version of § 65-05-33 does not apply to Sjostrand — as he asserts— then the Bureau’s entire case disappears because he has undisputedly made no “false statement” and his “nonverbal conduct” simply is not an element of the statute in effect on his date of injury.
Section 65-05-33 was amended and reenacted in 2001 to provide that it applies to all claims, regardless of the date of injury. 2001 N.D. Sess. Laws ch. 576, §§ 2, 3. “However, statutory enactments may not operate retrospectively to abrogate a vested right or a valid contractual obligation. A vested right is an immediate or fixed right to present or future enjoyment that does not depend upon an event that is uncertain.” Saari v. North Dakota Workers Comp. Bureau, 1999 ND 144, ¶ 10, 598 N.W.2d 174 (citations omitted).
[¶15] Under N.D.C.C. § 65-05-04, the Bureau may review a compensation award and end, diminish or increase it. That section “is a legislative recognition that a benefit recipient’s status may change over time” and “the Bureau may appropriately investigate whether a recipient continues to be disabled.” Snyder v. North Dakota Workers Comp. Bureau, 2001 ND 38, ¶ 9, 622 N.W.2d 712. A determination of whether or not a recipient remains disabled and entitled to benefits may be made any time. Sjostrand has not shown he has a vested right to benefits under the law in effect at the time of his injury, as he has not shown “an immediate or fixed right to present or future enjoyment that does not depend upon an event that is uncertain.” Saari, at ¶ 10. See also Gregory v. North Dakota Workmen’s Comp. Bureau, 369 N.W.2d 119, 121 (N.D.1985) (amount of compensation is determined under the rate in effect as of date of impairment determination, not that in effect at the time of injury). A determination of continuing disability should be based on the law in effect when that determination is made, not that in effect at the time of the injury. Sjostrand has not shown he has a fixed right to continue receiving benefits based upon a 1999 willful misrepresentation of his physical condition or his physical ability that would preclude application to him of the misrepresentation provisions of N.D.C.C. § 65-05-33 enacted in 1997. We conclude the 1997 version of N.D.C.C. § 65-05-33(l)(b), dealing with misrepresentation of physical condition applies to Sjostrand’s claim.
[¶ 16] The Bureau found:
9. The surveillance of Sjostrand’s activities was conducted over a period of nearly five months beginning May 4, 1999, through September 25, 1999. In [545]*545connection with that surveillance more than six hours of videotape were made showing Sjostrand’s various activities, including mowing lawn on May 13, 1999; working on the deck of his home on May 18, 1999, doing still photography on July 14, 1999; and working in connection with a rummage sale on July 16 and 17, 1999. While his activities are not without pain and some limitation as a result, he is clearly able to work effectively and efficiently to mow lawn, maintain and improve the deck of his home, engage in photography, and conduct a rummage sale.
10. The greater weight of the evidence establishes that Sjostrand’s activities shown on the videotapes made in the course of the surveillance of Sjost-rand conducted by the Bureau are fairly representative of his physical condition and physical abilities in usual and typical circumstances, notwithstanding that he may on occasion “pay for” his activities by a period of increased pain and disability following his activities, that he has “good days” when he can do more and “bad days” when he is not able to do as much, and that he can do more when the analgesic medicine he uses is most effective.
11. The Bureau ordered Sjostrand to attend an independent medical exam by Dr. Gregory Peterson on September 13, 1999. Upon the completion of his examination, Dr. Peterson concluded and reported to the Bureau that “Mr. Sjostrand has generalized, variable, nonspecific pain complaints which are markedly out of proportion to objective findings,” and that “findings on examination suggest a conscious or unconscious exaggeration of pain behaviors.” R., Ex. 39, p. 433. After viewing portions of the videotapes of Sjostrand’s activities during the surveillance conducted by the Bureau’s investigator, Dr. Peterson concluded that Sjostrand’s exaggeration of pain behaviors during his examination was. conscious; that during . his examination [ ] Sjostrand had willful- : ly misrepresented his- physical abilities; specifically, that he “willfully misrepresented his degree of disability.” R., Tr., June 23, 2000, p. 375.
12. Based upon his viewing all of the videotapes showing Sjostrand’s activities during the periods of his surveillance by the Bureau, it is Dr. Peterson’s opinion that Sjostrand would be able to do the same activities which he did during the periods of videotaped surveillance during the majority of other days when the surveillance was conducted.
13. Had Sjostrand’s misrepresentation of his physical condition and physical abilities to Dr. Peterson gone unchecked, it is likely that he would have continued to receive disability benefits upon the opinion of Dr. Yue that he was totally disabled, and would not have resumed his rehabilitation program.
The Bureau concluded:
8. While there is insufficient evidence of any intentional false statement by Sjostrand to Dr. Peterson for the independent medical examination which he conducted ... the greater weight of evidence establishes that Sjostrand consciously exaggerated his pain behaviors upon his examination by Dr. Peterson, and in so doing willfully misrepresented his physical condition and physical abilities (that is, [] he acted intentionally with the purpose to deceive Dr. Peterson concerning his physical condition and his physical abilities).
9. Had Sjostrand’s willful misrepresentation of his physical condition and physical abilities to Dr. Peterson gone unchecked, it is likely that he would have continued to receive disability ben[546]*546efits upon the opinion of Dr. Yue that he was totally disabled and would not have resumed his rehabilitation program, and, therefore, his misrepresentation was material to the determination of his entitlement to workers compensation benefits.
We conclude from our review of the record there is evidence from which a reasoning mind reasonably could have determined the findings were proven by the weight of the evidence. We further conclude the Bureau properly applied the misrepresentation provisions of N.D.C.C. § 65-05-33 to Sjostrand’s claim and properly concluded Sjostrand’s misrepresentations violated N.D.C.C. § 65-05-33.
B
[¶ 17] Sjostrand contends the “Surveillance videotapes should have been excluded from the evidence or, if included, given little weight.”
[¶ 18] Sjostrand argues his activities shown in the videotapes—mowing his lawn, doing light work on the deck of his home, taking photographs, and participating in a rummage sale—do not constitute “work activities” required to be reported by N.D.C.C. § 65-05-08(3) and are “as a matter of law, not ‘material’ for the purpose of the fraud statute.” Section 65-05-08(3), N.D.C.C., provides, in part: “For purposes of this subsection, ‘work’ does not include routine daily activities of self-care or family care, or routine maintenance of the home and yard.” While the activities Sjostrand is shown performing in the surveillance videotapes may not be “work” or “work activities” under N.D.C.C. § 65-05-08(3), they are evidence of Sjostrand’s physical condition and ability. Thus, we are unable to conclude the activities shown are not material as a matter of law.
[¶ 19] Sjostrand argues:
Moreover, the videotapes, on their face, are inherently unreliable as an indicator of Sjostrand’s true abilities over time. First, the 7½ hours of videotape (AR 663a) cover a time frame of 4½ months. The 7½ hours were subjectively selected by the persons doing the videotapes with absolutely no attempt to record, in any manner, the activities of Sjostrand in the weeks and months that are not covered by the 7⅜ hours of videotape. Furthermore, the videotapes themselves are “on again-off again” tapes which do not, in any manner, show what Sjostrand was doing (for example, taking rest breaks) between the subjectively excerpted portions taken by the investigators.
Relying on 28 Am.Jur.2d, Evidence § 985, John B. Kelly Co. v. Workmen’s Comp. Appeal Bd., 8 Pa.Cmwlth. 589, 303 A.2d 255 (1973); DeBattiste v. Anthony Laudadio & Son, 167 Pa.Super. 38, 74 A.2d 784 (1950); Lambert v. Wolfs, Inc., 132 So.2d 522 (La.Ct.App.1961); and 7 Larson’s Workers’ Compensation Law, § 127.10 (2000), Sjostrand argues edited videotapes are inherently suspect, should be viewed with caution, and are of questionable value. Sjostrand also contends: “Finally—and overtly compounding the entire matter— the 7⅜ hours of videotape were distilled into a 27 minute videotape by the Bureau and shown to the ALJ at the hearing and was the basis for Dr. Peterson’s testimony.” As to this point, however, the ALJ stated in his recommended findings, conclusions, and order, that his “conclusions are based upon all of the videotapes.” Dr. Peterson testified he reviewed all the videotapes “in their entirety;” and testified the edited videotape “is a fair representation of the activities I observed on the complete set of videotapes.”
[¶ 20] Furthermore, Sjostrand’s arguments about the videotapes go to their [547]*547weight. Sjostrand was free to, and did, present argument and evidence designed to undercut the weight to be given to the videotapes. “The Bureau has discretion to weigh the evidence before it, although it may not pick and choose in an unreasonable manner.” Buchmann v. North Dakota Workers Comp. Bureau, 2000 ND 79, ¶ 25, 609 N.W.2d 437. We conclude the videotapes were appropriately received into evidence and the weight to be given them was for the Bureau to determine.
Y
[¶ 21] Sjostrand contends the Bureau erred in using a “preponderance of the evidence” standard of proof in applying N.D.C.C. § 65-05-33, rather than a “clear and convincing evidence” standard.
[¶ 22] Sjostrand argues: “This Court has never specifically addressed whether the Bureau’s burden under the ‘fraud’ statute must be by ‘clear and convincing evidence.’ ”
[¶ 23] In F.O.E. Aerie 2387 v. North Dakota Workers Comp. Bureau, 464 N.W.2d 197, 198-99 (N.D.1990), the Bureau found an injured employee had made a false statement about his prior medical history, concluded that, under N.D.C.C. § 65-05-33, the claimant must forfeit additional benefits otherwise due him, and ordered forfeiture of future benefits. This Court affirmed, noting one of the critical questions was whether the findings were supported by a preponderance of the evidence, and concluding: “The Bureau’s findings of fact are ... supported by a preponderance of the evidence.” F.O.E. Aerie 2337, at 199. In Hausauer v. North Dakota Workers Comp. Bureau, 1997 ND 243, ¶ 13, 572 N.W.2d 426, this Court followed F.O.E. Aerie 2337 and held: “In order to trigger the civil penalties, the Bureau must prove the elements of N.D.C.C. § 65-05-33 by a preponderance of the evidence.” Since those decisions, a number of claimants have asserted the Bureau’s burden of proof in applying N.D.C.C. § 65-05-33 is clear and convincing evidence, rather than a preponderance of the evidence. See Snyder v. North Dakota Workers Comp. Bureau, 2001 ND 38, ¶ 19, 622 N.W.2d 712; Aalund v. North Dakota Workers Comp. Bureau, 2001 ND 32, ¶ 9, 622 N.W.2d 210; Renault v. North Dakota Workers Comp. Bureau, 1999 ND 187, ¶ 11, 601 N.W.2d 580; Hopfauf v. North Dakota Workers Comp. Bureau, 1998 ND 40, ¶ 15, 575 N.W.2d 436, in which this Court declined to address the issue because the claimants had inadequately raised or otherwise failed to preserve the issue for appellate review. Thus, although some claimants have attempted to secure a reassessment of the burden of proof under N.D.C.C. § 65-05-33 since F.O.E. Aerie 2337 and Hausauer, this Court has not undertaken such a reassessment.
[¶ 24] Sjostrand asserts this Court has “broadly hinted that it would entertain an appropriate argument for application of ‘clear and convincing evidence’ standard under N.D.C.C. § 65-05-33 ‘fraud’ cases,” citing the following language in Renault v. North Dakota Workers Comp. Bureau, 1999 ND 187, ¶ 12 n. 4, 601 N.W.2d 580:
We have recognized, however, “an evi-dentiary standard of proof differs from a standard of review employed by an appellate court to a decision in which the standard of proof has already been applied.” In re Dvorak, 1998 ND 134, ¶ 16, 580 N.W.2d 586.
However, N.D.C.C. §§ 28-32-46 and 28-32-49 since August 1, 2001, and N.D.C.C. §§ 28-32-19 and 28-32-26 before that, provide both a standard of review and an evidentiary standard of proof by requiring [548]*548judicial affirmance of administrative agency orders unless the agency’s findings of fact “are not supported by a preponderance of the evidence.”
[¶ 25] Sjostrand contends: “Because it was for the injured worker that the Act was passed, and in order to preserve the constitutionality of the statute, the Bureau must prove its allegations of ‘fraud’ by ‘clear and convincing evidence.’ ” Sjost-rand argues that because fraud must be proven by clear and convincing evidence in a civil action, see Fargo Foods, Inc. v. Bernabucci, 1999 ND 120, ¶ 19, 596 N.W.2d 38, it “follows — a fortiori — that the Bureau ... must have no less burden” or “the profound constitutional issue as to whether the injured worker is still getting the ‘benefit of the bargain imposed’ on the injured worker must be confronted” and “interpreting the statute to require the ‘clear and convincing’ standard avoids the profound constitutional issue as to whether any less a burden on the Bureau would unconstitutionally undermine the ‘sure and certain’ relief provided to the injured worker in return for depriving him of his ‘important substantive right’ of access to courts.”
[¶ 26] When we trace the origins of the “clear and convincing evidence” standard to prove fraud to its earliest origin in the opinions of this Court, it is apparent the standard evolved out of “the general rule ... that fraud is never presumed but must be affirmatively proved.” Krause v. Krause, 151 N.W. 991, 994, 30 N.D. 54 (1915). But even there the court further stated “the presumption, if any, is in favor of innocence and the burden falls on him who asserts fraud to establish it by proving every material element constituting such fraud by a preponderance of the evidence.” Id. (Emphasis added). In any event, it is apparent the subsequent cases through which the “clear and convincing evidence” standard has evolved did not involve a standard specified by the Legislature. See, e.g., Verry v. Murphy, 163 N.W.2d 721 (N.D.1968).
[¶ 27] We have said that, under N.D.C.C. § 28-32-19 the usual standard of review for administrative agency findings of fact is a preponderance of the evidence. Hanson v. Industrial Comm’n, 466 N.W.2d 587, 590 (N.D.1991). The usual standard of review applied by courts in reviewing factual determinations of administrative agencies formerly provided by N.D.C.C. §§ 28-32-19 and 28-32-21, and which now, effective August 1, 2001, is provided by N.D.C.C. §§ 28-32-46 and 28-32-49, is the preponderance of the evidence standard. However, when a specific statutory standard of review differs from the general standard, the specific statute ordinarily prevails under N.D.C.C. § 1-02-07. Amoco Production Co. v. Industrial Comm’n, 307 N.W.2d 839, 841-42 (N.D.1981).
[¶ 28] Under N.D.C.C. § 65-01-11, a claimant generally “has the burden of proving by a preponderance of the evidence that the claimant is entitled to benefits.” The legislature has imposed a clear and convincing evidentiary standard, a specific standard differing from the general standard, in a number of workers compensation statutes. See N.D.C.C. § 65-05-15(1) (period of acute care for some compensable injuries “is presumed to be sixty days ... absent clear and convincing evidence to the contrary”); N.D.C.C. § 65-05-15(3) (aggravation benefits are presumed payable on a fifty percent basis unless the presumption is rebutted with “clear and convincing evidence to the contrary”); and N.D.C.C. § 65-05-35(2) (a claim presumed closed may not be reopened “unless the presumption is rebut[549]*549ted by clear and convincing evidence that the work injury is the sole cause of the current symptoms”).
[¶ 29] Section 65-05-33, N.D.C.C., does not specify an evidentiary burden of proof. If a statute specifies no burden of proof, arguably this Court could supply one. See Steadman v. S.E.C., 450 U.S. 91, 95-6, 101 S.Ct. 999, 67 L.Ed.2d 69 (1981) (“Where Congress has not prescribed the degree of proof which must be adduced ... in an administrative proceeding, this Court has felt at liberty to prescribe the standard.”). However, the Steadman court continued, “where Congress has spoken, we have deferred to ‘the traditional powers of Congress to prescribe rules of evidence and standards of proof in the federal courts’ absent countervailing constitutional constraints.” Id. (citations omitted). Here, the legislature has spoken, and Sjostrand’s argument has not persuaded us there are countervailing constitutional constraints.
[¶ 30] Because N.D.C.C. § 65-05-33. does not specify an evidentiary burden of proof, it does not provide a specific standard differing from the general standard of a preponderance of the evidence specified for judicial review of an administrative agency’s findings of fact in N.D.C.C. ch. 28-32. Thus, we conclude the Bureau’s findings under N.D.C.C. § 65-05-33 must be affirmed if they are supported by a preponderance of the evidence.
VI
[¶ 31] Sjostrand contends Bureau delays and continuing investigations after the November 24, 1999, Notice constitute impermissible adversarial conduct and endemic institutional delay mandating a finding of contempt or other remedies.
[¶ 32] Citing Blanchard v. North Dakota Workers Comp. Bureau, 1997 ND 118, ¶ 23, 565 N.W.2d 485 and Hayes v. North Dakota Workers Comp. Bureau, 425 N.W.2d 356, 357 (N.D.1988), Sjostrand says “[t]his Court has ‘repeatedly cautioned’ that the Bureau must not take a ‘position ... fully adversary to the claimant notes this Court has said “[t]he adversary concept has only limited application to claims for workmen’s compensation benefits and the Bureau ... acts in a quasi-judicial capacity” (citing Roberts v. North Dakota Workmen’s Comp. Bureau, 326 N.W.2d 702, 706 (N.D.1982), Bromley v. North Dakota Workmen’s Comp. Bureau, 304 N.W.2d 412, 416 (N.D.1981), Steele v. North Dakota Workmen’s Comp. Bureau, 273 N.W.2d 692, 702 (N.D.1978)), and' further notes “this Court long ago pointedly informed the Bureau that its admonishments to the Bureau must not be ‘treated as empty noise’ ” (citing Spangler v. North Dakota Workers Comp. Bureau, 519 N.W.2d 576, 578 (N.D.1994)). That is the extent of Sjostrand’s argument about impermissible adversarial conduct by the Bureau. “With no more development than that, the issue would ordinarily be deemed abandoned.” Olander Contracting Co. v. Gail Wachter Invs., 2002 ND 65, ¶ 32, 643 N.W.2d 29. “We have also said a party waives an issue by not providing supporting argument.” Id. at ¶ 27. Nevertheless, we have examined the record in light of Sjostrand’s argument, and we conclude Sjostrand has not shown the Bureau engaged in impermissible adversarial conduct.
[¶ 33] Sjostrand contends the Bureau has engaged in endemic institutional delay requiring a finding of contempt or the fashioning of other remedies. Sjostrand argues “the Bureau must give notice of substantially its entire case prior to terminating benefits and it must give a [550]*550timely hearing. It has done neither in this case.” Sjostrand further asserts: “It is not enough merely to reinstate Sjostrand’s benefits for the seven month period that it took for him to have a hearing on his claim. On the contrary, at a minimum, Sjostrand’s disability benefits must be reinstated — as a sanction — through the date of this Court’s decision.”
[¶ 34] In its initial November 22, 1999, Notice, the Bureau gave Sjostrand a five-page summary of the evidence the Bureau was relying upon to terminate Sjostrand’s benefits. In that summary, the Bureau did “give notice of substantially its entire case prior to terminating benefits.” In its amended November 24, 1999, Notice, the Bureau notified Sjostrand his benefits would be terminated December 15, 1999. The Notice also advised Sjostrand: “If you believe this decision is wrong, you must write to the Bureau within 30 days of when this Notice was mailed asking to have the decision reconsidered.”
[¶ 35] By letter of December 17, 1999, Sjostrand’s attorney advised a Bureau claims analyst “the Bureau’s decision is 'wrong’ ” and further advised the Bureau:
if it nonetheless proceeds in terminating benefits as threatened in the November 24, 1999 letter, Mr. Sjostrand reserves the right to seek appropriate sanctions against the Bureau for its disregard of the rights of not only Mr. Sjostrand, but its 'systemic disregard’ of the rights of all injured workers who similarly have had their benefits terminated in violation of injured workers’ statutory and constitutional rights.
In a January 25, 2000, letter, Sjostrand’s attorney demanded “ ‘an administrative order’ ... be issued ‘within 60 days’ of my December 17,1999 letter.”
[¶ 36] On February 2, 2000, the Bureau issued an order stating Sjostrand forfeited all additional disability and other benefits in connection with the claim. By letter of February 21, 2000, Sjostrand’s attorney demanded “that the Bureau request appointment of an Administrative Law Judge (ALJ) immediately ” and further demanded “there be absolutely no further ‘investigation’ or ‘discovery’ by the Bureau’s outside counsel in this case so as not to delay a hearing on this matter.” He also advised the Bureau that “Mr. Sjostrand will not allow any undue delays in putting the Bureau to its strictest proof regarding the allegations against him” and expressed his view that 14 days would be sufficient time for requesting appointment of an administrative law judge.
[¶ 37] On March 7, 2000, the Bureau requested the Office of Administrative Hearings appoint an ALJ. An ALJ was appointed to hear the matter, and on March 13, 2000, he issued a notice that an administrative hearing would be held May 24, 2000. On March 14, 2000, Sjostrand requested the ALJ to approve discovery interrogatories to the Bureau, and requested an order protecting Sjostrand from Bureau discovery, an independent medical examination, or any further investigation of the matter by the Bureau. On March 28, 2000, the ALJ issued an order granting Sjostrand’s discovery request and denying his request for a protective order.
[¶ 38] By motion of May 3, 2000, the Bureau sought a continuance to take a deposition of Dr. Yue, who was not available for a deposition before June 14, 2000, about disparities between Dr. Yue’s 1999 Functional Capacity Questionnaire and a 1995 Functional Capacities Evaluation Summary Report offered into evidence by Sjostrand in an April'27, 2000, discovery deposition of Dr. Peterson. The ALJ continued the scheduled May 24, 2000, hearing.
[551]*551[¶ 39] The Bureau took a deposition of Dr. Yue after it suspended Sjostrand’s benefits, which Sjostrand argues was improper under Stewart v. North Dakota Workers Comp. Bureau, 1999 ND 174, 599 N.W.2d 280. We said:
The procedure approved in Mathews and adopted in Beckler, which allows termination of benefits without a preter-mination hearing if there is notice, a summary of the evidence, and an opportunity to respond, clearly envisions that the Bureau will conduct its investigation and marshal its evidence before the NOID is issued.
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The Bureau is not free to terminate benefits on a hunch of wrongdoing, hoping that a subsequent investigation will reveal evidence supporting its position .... The Bureau must conduct its investigation on its own nickel, not on the disabled worker’s.
Id. at ¶¶ 24-26. However, we also said “[w]e do not suggest the Bureau is precluded from considering evidence which comes to light after it issues a NOID and terminates benefits.” Id. at ¶ 29 n. 6. From our review of the record, we conclude there is evidence to support the ALJ’s determination that “Dr. Yue’s testimony was obtained by deposition not for discovery purposes, as part of a continuing investigation, but rather to be offered as the testimony of a witness at the hearing” requested by Sjostrand, and the ALJ’s recommended conclusion of law that “[t]he Bureau’s decision and action to obtain the testimony of Dr. Yue by deposition for the hearing of this matter was not ‘post-benefit termination discovery,’ as Sjostrand describes the action.”
[¶ 40] The hearing was conducted on June 23 and July 14, 2000. On November 22, 2000, the ALJ issued recommended findings of fact, conclusions of law, and order, which the Bureau adopted on December 27, 2000.
[¶ 41] In Stewart v. North Dakota Workers Comp. Bureau, 1999 ND 174, ¶ 21, 599 N.W.2d 280 (citations omitted), we said:
The due process clause requires that the post-deprivation hearing be provided at a meaningful time. At some point, a delay in the post-termination evidentiary hearing becomes a constitutional violation.
Stewart involved a period of about 15 months between termination of benefits and the post-termination evidentiary hearing and we found it untimely. In Jacobson v. North Dakota Workers Comp. Bureau, 2000 ND 225, ¶20, 621 N.W.2d 141, we held the Bureau’s delay of 16 months between its July 1997 termination of benefits and its November 1998 hearing “did not afford Jacobson a timely remedy, violating his due process rights.” Here, however, only about six months passed between termination of Sjostrand’s benefits on December 15, 1999, and the first day of the post-termination evidentiary hearing, during which Sjostrand engaged in discovery and the Bureau took a hearing deposition of Dr. Yue, who was not available before June 14, 2000. We conclude the delay between the termination of Sjostrand’s benefits and the post-termination eviden-tiary hearing was not undue. We, therefore, conclude Sjostrand has not shown any delay requiring an order of contempt or other remedy.
VII
[¶ 42] The district court judgment affirming the Bureau’s order is affirmed.
[¶ 43] DALE V. SANDSTROM, CAROL RONNING KAPSNER and WILLIAM A. NEUMANN, JJ, concur.