HOLLOWAY, Chief Judge.
Ben Klein (Klein) was convicted of five counts of tax evasion in 1973. Related to those prior convictions, there are now two consolidated appeals before us, one challenging the trial court’s denial of a petition for a writ of
coram nobis
(No. 87-1769) and one challenging the trial court’s denial of a Rule 60(b) motion for a new trial in that proceeding (No. 88-2692). We affirm both rulings.
I
Factual Background and Procedural Posture
The lengthy and complex procedural posture of this case is relevant to both of these appeals. Klein’s petition for a writ of
cor-am nobis
challenges his 1973 convictions under 26 U.S.C. § 7201 for evading taxes from 1966-1970. We affirmed those five convictions in 1975.
See United States v. Klein,
35 AFTR 2d 75-1282 (10th Cir.1975),
cert. denied,
423 U.S. 827, 96 S.Ct. 44, 46 L.Ed.2d 44 (1975). We rejected there Klein’s argument that he was not competent to stand trial and that the issue of his mental capacity to form intent to defraud should not have been submitted to the jury.
A.
Klein’s 1978 Motion for a New Trial
In 1978 Klein filed a motion for a new trial in his criminal case on the ground of newly discovered evidence. The evidence consisted of information known to the Bureau of Narcotics and Dangerous Drugs (B.N.D.D.) and the I.R.S. before trial and not communicated to Klein. Klein had been investigated for possible involvement in narcotics trafficking. During the early part of its investigation the B.N.D.D thought that he had received income from financing narcotics deals. This belief was referred to the I.R.S., which ultimately decided not to pursue the matter. YII R. 166-167. The trial court denied Klein’s motion for a new trial, reasoning that it was untimely and that none of the new evidence would have been admissible or exculpatory.
United States v. Klein,
No. 73-CR-ll (D.Colo. April 10, 1978). Again we affirmed.
See United States v. Klein,
No. 79-1024 (10th Cir. May 11, 1979) (per curiam),
cert. denied,
444 U.S. 925, 100 S.Ct. 264, 62 L.Ed.2d 182 (1979) (upholding the trial court’s ruling that the motion was untimely).
B.
Disciplinary Proceedings Before the Colorado Supreme Court
Throughout the 1970’s and 1980’s Klein was involved in state bar disciplinary proceedings. In 1972, he was suspended from the practice of law for an indefinite period of time, but in no event for less than three years, for fabricating documents and presenting them to the Colorado Supreme Court Grievance Committee in defense of pending allegations of professional misconduct.
See People v. Klein,
179 Colo. 408, 500 P.2d 1181 (1972) (en banc)
{Klein I).
In 1988, after various proceedings, the Colorado Supreme Court granted Klein’s petition for reinstatement to the practice of law.
People v. Klein,
756 P.2d 1013 (Colo.1988) (en banc)
(Klein II).
The court found that Klein had regained his mental health (Klein had earlier asserted to the Committee that he was mentally disabled) and was competent to practice law.
Id.
at 1016.
C.
Civil Proceedings in the Tax Court
In 1980 Klein received a notice of deficiency in income tax and additions to tax for civil fraud penalties from 1962 through 1970. The Tax Court found that the government had failed to prove fraud for the years 1962 through 1965, but reasoned that Klein was collaterally estopped by his criminal convictions from denying fraud for 1966 through 1970.
Klein v. Commissioner,
48 TCM 651 (1984). Klein’s appeal to this court of the Tax Court’s decision (No. 85-1245) has been abated pending disposi
tion of these consolidated appeals. Our opinion affirming the Tax Court is being separately filed today. 880 F.2d 260.
D.
Denial of the Writ of Coram Nobis
In support of his petition for
coram no-bis
relief in the district court Klein argued that: (1) there was new evidence that the government withheld its belief that he was financing narcotics deals; and (2) there was new evidence that Chief Probation Officer Hyland had knowledge of Klein’s mental condition, which both he and the prosecutors failed to disclose. After hearing testimony and receiving numerous exhibits, the trial court denied the petition. IX R. 2-7.
In his oral ruling the district judge found: (1) that Klein had the burden of proof; (2) that Klein delayed seeking the writ from 1978 to 1985 to the government’s prejudice; (3) that the prosecution did not know of Hyland’s information before trial and therefore had no duty to divulge it; (4) that Hyland, as a probation officer of the court, had no duty to divulge his knowledge of Klein’s mental illness in the navy; (5) that the government’s belief that Klein was financing narcotics deals was not exculpatory; (6) that the affidavits of Klein’s 1973 trial attorneys, stating that the drug information would not have made a difference, were highly persuasive; (7) that introduction of the drug evidence would have been sheer folly; and (8) that Klein had failed to carry his burden of proof. IX R. 2-7. A timely notice of appeal was filed.
E.
Denial of the Motion for a New Trial
As noted, in 1988 the Colorado Supreme Court granted Klein’s petition for reinstatement to the practice of law, finding that he had regained his mental health and was competent to practice law.
People v. Klein,
756 P.2d 1013, 1016 (Colo.1988) (en banc)
(Klein II).
Shortly thereafter, Klein filed a motion for a new trial in his proceeding for a writ of
coram nobis.
Klein argued that the Colorado Supreme Court in
Klein II
recognized that he had suffered from mental illness, further supporting his incompetency defense to his 1966-1970 federal tax convictions. The federal trial court denied the motion and Klein filed a timely notice of appeal.
II
Analysis
A
Denial of the Petition for a Writ of Coram Nobis
While the writ of
coram nobis
was abolished by the 1946 amendment of Fed.R. Civ.P. 60(b) in civil cases, it retains its vitality in criminal proceedings.
United States v. Morgan,
346 U.S. 502, 505-506 and n. 4, 512, 74 S.Ct. 247, 249-250 and n. 4, 253, 98 L.Ed. 248 (1954).
See
28 U.S.C. § 1651 (granting federal courts authority to issue “all writs necessary or appropriate in aid of their respective jurisdic-tions_”). Because the writ continues litigation after final judgment and exhaustion of other remedies, relief should be “allowed through this extraordinary remedy only under circumstances compelling such action to achieve justice.”
Morgan,
346 U.S. at 511, 74 S.Ct. at 252. The writ is available only to “correct errors that result in a complete miscarriage of justice.”
United States v. Williamson,
806 F.2d 216, 222 (10th Cir.1986) (quoting
Korematsu v. United States,
584 F.Supp. 1406, 1419 (N.D.Cal.1984)).
It is presumed that the proceedings leading to the conviction were correct,
see Morgan,
346 U.S. at 512, 74 S.Ct. at 253, and the burden is on the petitioner to demonstrate that the asserted error is jurisdictional or constitutional and results in a complete miscarriage of justice.
United States v. Scherer,
673 F.2d 176, 178 (7th Cir.1982),
cert. denied,
457 U.S. 1120, 102 S.Ct. 2935, 73 L.Ed.2d 1334 (1982).
See also United States v. Addonizio,
442 U.S. 178, 186, 99 S.Ct. 2235, 2241, 60 L.Ed.2d 805 (1979). When claiming newly discovered evidence, the petitioner must show that due diligence on his part could not have revealed the evidence prior to trial and that
the evidence “would have likely led to a different result.”
Scherer,
673 F.2d at 178.
Evidence Of Klein’s Involvement in Narcotics Trafficking
The court held an extensive evidentiary hearing before denying the
coram nobis
petition. Klein produced evidence (much of it the same as that produced in the 1978 motion for a new trial and the tax case) of the B.N.D.D.’s investigation and the allegedly unwarranted suspicion held by it and the I.R.S. that he had received income from financing narcotics deals. He argued that if the government had disclosed its suspicion prior to trial, he could have introduced that evidence and shown the government’s suspicion unfounded, thereby undermining the soundness of the government’s investigation and its decision to charge him.
We reject Klein’s argument for fundamental reasons. Klein failed to exercise due diligence in seeking the writ, a prerequisite to relief.
See Hirabayashi v. United States,
828 F.2d 591, 604-605 (9th Cir.1987) (petitioner must show valid reasons for not attacking the conviction earlier). As the trial court found, Klein had access to the information relied upon here from 1978 to 1985. IX R. 4. During those seven years two key witnesses died. IX R. 4. We are persuaded that Klein failed to exercise due diligence in seeking the writ.
Even assuming the exercise of due diligence, Klein’s argument fails on the merits. It is important to remember that Klein’s argument in support of his petition for a writ of
coram nobis
is premised upon an alleged denial of his constitutional right to a fair trial — on the ground that the prosecutors failed to disclose impeachment evidence under
Brady v. Maryland,
373 U.S. 83, 83 S.Ct. 1194, 10 L.Ed.2d 215 (1963) and the Jencks Act. We think it clear that Klein was not deniéd a fair trial.
For that reason alone, his petition for
cor-am nobis
relief necessarily fails.
Moreover, Klein failed to carry his burden in this
coram nobis
proceeding of demonstrating that the new evidence “would have likely led to a different result,”
Scherer,
673 F.2d at 178, so that the circumstances compel relief “to achieve justice.”
Morgan,
346 U.S. at 511, 74 S.Ct. at 252. It is dubious whether the drug evidence would have helped Klein. Indeed, the trial court in 1978, the Tax Court in 1984, and the district court in the instant case,
all concluded either that the evidence would not
have been admissible or that its admission would have damaged Klein.
It is true that there was testimony from several witnesses that the use of the evidence might have resulted in a different charge against Klein or a different verdict on the tax evasion charge.
But there were also affidavits from Klein’s trial attorneys (attorneys Wald, Bugdanowitz and Abramovitz) stating that the evidence would not have changed their presentation of the defense. Appellee’s Addendum, pp. 93-96. While these affidavits were prepared in 1978 in connection with the motion for a new trial and without all the information which subsequently became available, they were admitted below and the trial court found them persuasive, along with the other evidence presented at the hearing. IX R. 5. I.R.S. attorney Gehres, the government’s summary witness in the criminal trial, testified that the drug evidence would not have made a difference. VII R. 160-162, 165-167. And prosecutors Madden and Spelts also testified that the drug evidence would not have changed the outcome. VII R. 187, 202, 207-208. We note that the government did not introduce any evidence relating to the drug accusations at trial.
VII R. 221-224.
Having considered all the evidence, the trial court concluded that it would have been the “sheerest folly for defense counsel, Klein’s defense counsel, to have introduced the subject of narcotics_” IX R. 5. As a matter in the factual area of trial strategy and evaluation of evidence by counsel, we do not think this finding is clearly erroneous.
We agree with Klein’s
position that in assessing the possible impact of withheld evidence on a jury, and the materiality of the evidence, we should apply the
de novo
review standard.
Cf. Chaney v. Brown,
730 F.2d 1334, 1345-1346 (10th Cir.1984),
cert. denied,
469 U.S. 1090, 105 S.Ct. 601, 83 L.Ed.2d 710 (1984). Our assessment of the impact of such evidence in this context is the same as that of the district judge — disclosure of the information on financing of narcotics trafficking having been suspected, which Klein claims to have been improperly witheld, would not have had a favorable effect for Klein.
Evidence Relating to Klein’s Competency
Klein argued in his criminal trial that he did not have the mental capacity to form the requisite intent to defraud and that he was legally incompetent. James Hyland (who had a master’s degree in psychology but was not a trained psychiatrist) worked as chief pharmacist at a psychiatric observation unit in the Navy and observed Klein for six to eight weeks during 1945, the year of Klein’s discharge. Hyland was the Supervising Probation Officer for the District of Colorado at the time of Klein’s criminal trial and later became Chief Probation Officer. Hyland did not testify in the 1973 trial, but he did testify before the Tax Court by deposition (this testimony was admitted at the
coram nobis
proceeding below) and during the August 1985 hearing on the petition for a writ of
coram nobis.
Hyland said that during his World War II service Klein was unable to function militarily, was disorganized, bewildered, hostile, and at times unaware of what was going on. Appellant’s Addendum, pp. 30-31. He testified that Klein was diagnosed as schizophrenic, although this diagnosis was later changed to “personality disorder.”
Id.
at 28. At the criminal trial Doctor Miller, the court appointed psychiatrist, testified that while Klein was mentally ill he had the requisite mental capacity to form specific intent to defraud. VII R. 9. In forming this opinion, Doctor Miller relied in part on the apparent absence of naval records which might indicate that Klein suffered from a mental illness. VII R. 15. Miller said, however, that even had he known of Hyland’s observations in the Navy, his findings regarding Klein’s competency in 1973 “would not [have] been altered by Mr. Hyland’s testimony in any way.” VII R. 10.
Klein argues that Hyland’s testimony would have helped to demonstrate a history of mental illness, thereby bolstering Klein’s defense of mental incapacity and avoiding any claim that the mental incapacity defense was recently contrived. The argument fails because the evidence shows that Klein had knowledge
of
Hyland’s information through his attorney, Mr. Wald, .if not through his own experience with Hyland in the Navy.
The parties stipulated that Hy-land talked with Wald prior to the criminal trial and that Wald was informed that Hy-land knew Klein while in the Navy. IV R. 13. Hyland states in his affidavit of March 13, 1985 that he discussed his knowledge of Klein’s background with Wald prior to the criminal trial. I R. 7, Exh. C. Hyland also testified at the August 1985 hearing that he had met with Wald prior to the criminal trial and discussed Klein’s mental condition in the Navy. IV R. 18-26, 34-35. Furthermore, attorney Wald, in a letter to the Justice Department (dated December 22, 1972 and preceding the 1973 trial), makes reference to Klein’s “long-existing psychotic condition” and to his “psycho discharge from the navy.” I R. 7, Exh. D. And Wald himself sent a copy of a letter from Klein’s psychiatrist to the Justice Department on January 11, 1973, in which Klein’s psychiatrist states that obsessions and compulsions caused Klein’s discharge from the Navy. I R. 7, Exh. E.
While the trial court did not specifically find that Klein had knowledge of the information on his mental condition in the Navy, we think the record plainly establishes such knowledge and precludes an argument that Klein has demonstrated, as he must, a complete miscarriage of justice.
Williamson,
806 F.2d at 222. Obviously, Klein cannot show that the information concerning his mental capacity could not have been discovered by due diligence,
see Scherer,
673 F.2d at 178, when the record shows that Klein himself had knowledge of the information.
Perhaps most importantly, Miller (whose testimony in 1973 was particularly important) testified at the
coram nobis
hearing that even had he known of Hyland’s information, he still would have testified in 1973 that Klein was competent. VII R. 7-10,12, 21-22. This undercuts Klein’s argument that Hyland’s testimony would likely have made a difference and, as noted earlier, that is the burden Klein carries here.
Scherer,
673 F.2d at 178. We are mindful that several witnesses testified that Hy-land’s testimony could have made a difference in the verdict.
We are nevertheless convinced in view of Miller’s testimony and that of several other expert and lay witnesses at the criminal trial,
see
n. 12,
infra,
that the testimony offered by Klein is not sufficient to show that Hyland’s testimony “would have likely led to a different result ...”
see Scherer,
673 F.2d at 178, concerning his mental capacity from 1966-1970 and his competency at the time of the criminal trial.
Klein’s remaining arguments in appeal No. 87-1679 are without merit. His repeated references to our opinion in
Bowen v. Maynard,
799 F.2d 593 (10th Cir.1986),
cert. denied,
479 U.S. 962, 107 S.Ct. 458, 93 L.Ed.2d 404 (1986), are unpersuasive. In
Bowen,
the record established improper withholding of evidence; we held there was a reasonable probability that its disclosure would have led to a different result.
Id.
at 613. That is not the case here. We hold that Klein has failed to carry his burden of showing that the alleged errors below resulted in a complete miscarriage of justice.
Scherer,
673 F.2d at 178.
See also Addonizio,
442 U.S. at 186, 99 S.Ct. at 2240. Accordingly, we affirm the trial court’s denial of the petition for a writ of
coram nobis.
B
Denial of the Motion for a New Trial
i
Rule 60(b)(5)
Klein filed a motion under Fed.R.Civ.P. 60(b)(5),
seeking a new trial in his
coram nobis
proceeding. The motion was based upon the Colorado Supreme Court’s decision in
People v. Klein,
756 P.2d 1013 (Colo.1988)
(Klein II).
In
Klein II,
the court granted Klein’s petition for reinstatement to the practice of law (he was suspended in
Klein I)
after concluding that he had regained his mental health and was competent to practice law.
Id.
at 1016. The court relied upon a Colorado Rule of Civil Procedure providing for reinstatement where there has been a demonstration of return to mental health and competence.
Id.
at 1025. In this appeal, Klein contends,
inter alia,
that the Colorado Supreme Court’s opinions show that he had a mental illness during the tax years of the criminal
charges, that the illness caused his professional misconduct, and that he was later rehabilitated. The district court denied Klein’s Rule 60(b) motion without a hearing.
Klein’s reply brief makes clear that he is arguing under Rule 60(b)(5) that “it is no longer equitable that the judgment [denying the petition for a writ of
coram
nobis] should have prospective application.”
Reply Brief, p. 3-5. The standard for relief under this portion of Rule 60(b)(5) is an exacting one and requires a strong showing. Wright & Miller,
Federal Practice & Procedure:
Civil § 2863, pp. 207-208 (1973). The rule is not a substitute for appeal.
Schildkaus v. Moe,
335 F.2d 529, 531 (2nd Cir.1964). Klein must show that some change in conditions makes continued enforcement of the order denying the petition for a writ of
coram nobis
inequitable.
De Filippis v. United States,
567 F.2d 341, 343-344 (7th Cir.1977).
Klein’s argument is based upon an unwarranted characterization of the evidence at the 1973 tax evasion trial. Klein argues that the government introduced
People v. Klein,
179 Colo. 408, 500 P.2d 1181 (1972) (en banc)
(Klein I)
to show that he was a perjurer and a manufacturer of false evidence. His suspension in
Klein I
for misconduct helped to show, he argues, intent to defraud. He also argues that Doctor Miller, the court appointed psychiatrist, relied on his 1972 suspension to claim that his depression was recent and resulted from the suspension. He contends that this undermined his incompetency defense.
It is true that
Klein II
says: “The evidence adduced at the hearing established that the respondent suffered from a serious mental illness from his teenage years through at least 1973, was still suffering some effects from that illness and at the date of the hearing was only marginally competent to proceed.”
Klein II,
756 P.2d at 1014. Pointing to the testimony of Doctor Miller, Klein argues that the question of his competency was a close one.
Assuming that
Klein I
was admitted in the 1973 criminal trial and was relied upon as Klein argues,
we think the district court was well within its discretion in denying the motion for a new trial in the
coram nobis
proceeding.
Navajo Tribe of Indians v. New Mexico,
809 F.2d 1455, 1474 (10th Cir.1987) (the decision to deny Rule 60(b) relief will not be disturbed on appeal absent an abuse of discretion). First, Klein gives far more weight to
Klein
7 as a basis for the jury’s finding of intent to defraud than is appropriate, considering the record as a whole. There was strong evidence that Klein intended to evade taxes. There was evidence that he claimed numerous deductions as business expenses which were in fact personal expenses, such as the cost of a color television set for his girl friend; there was evidence that on numerous occasions Klein used cashier’s checks to conceal assets; that his non-deductible personal expenditures for 1970 were more than three times his reported taxable income for that year; that from 1966 to 1970 his net worth increased from approximately $142,000 to $279,000, while his reported taxes decreased from $3,280 to approximately $320. Appellee’s Addendum, pp. 9-12. Given the record as a whole, we think Klein’s argument is meritless.
Klein also exaggerates the importance of
Klein I
to Miller’s testimony in the criminal trial to show mental capacity. We note that
Klein I
does not mention the issue of
mental capacity. At the criminal trial, both sides introduced substantial evidence on that issue, as our affirmance of Klein’s conviction makes clear.
Klein does not (and cannot now) dispute that evidence, but instead gives unwarranted focus to the importance of
Klein I
to Doctor Miller’s testimony. Any references to
Klein I
by Doctor Miller to show that Klein’s behavior was caused by disciplinary proceedings was not a fundamental part of the prosecution’s case so that the new determination in
Klein II
calls for a new trial under Rule 60(b)(5) from the denial of
coram nobis
relief.
Moreover,
Klein II
addressed the petition for reinstatement and discussed competency for professional practice. Indeed, the court specifically noted that a defense “based on the respondent’s mental condition during the years 1966-1970 had been raised by the respondent during his federal tax evasion trial and had been rejected by the jury.”
Klein II,
756 P.2d at 1014. The 1988 determination in
Klein II
regarding mental capacity for purposes of reinstatement to the practice of law does not warrant a new trial on the
coram nobis
petition, where the issue of intent to defraud from 1966-1970 and competency to stand trial in 1973 were thoroughly explored and decided in the criminal case. For all of these reasons, we think that the district court was within its discretion in denying the Rule 60(b)(5) motion for a new trial and we uphold that ruling.
Rule 60(b)(6)
Alternatively, Klein argues that relief should have been granted under Rule 60(b)(6) and its “grand reservoir of equitable power to do justice in a particular case.”
Pierce v. Cook & Co.,
518 F.2d 720, 722 (10th Cir.1975) (en banc),
cert. denied,
423 U.S. 1079, 96 S.Ct. 866, 47 L.Ed.2d 89 (1976). Rule 60(b)(6) provides that a court may relieve a party from a final judgment for “any other reason justifying relief from the operation of the judgment.” Relying primarily on
Overbee v. Van Waters & Rogers,
765 F.2d 578, 580-581 (6th Cir.1985), Klein argues that
Klein II
mandates relief. We disagree. In
Overbee,
a diversity case, the Ohio State Supreme Court reversed itself on a legal issue which had been controlling in the federal court.
Id.
at 580.
Klein II
simply grants Klein’s petition for reinstatement after finding that he had regained his mental health — it does not reverse
Klein I
on an issue of law.
Klein II,
756 P.2d at 1016.
Relief under Rule 60(b)(6) is reserved for extraordinary cases. Wright
&
Miller,
Federal Practice & Procedure:
Civil § 2864, p. 219 (1973).
See Pierce,
518 F.2d at 722-724;
Keane,
852 F.2d at 202. Klein has not demonstrated that this is an extraordinary case calling for relief under the rule.
Ill
Accordingly, the judgments in Nos. 87-1769 and 88-2692 are AFFIRMED.