MAYNARD, Justice:
In this original mandamus proceeding, the relator, the West Virginia Regional Jail and Correctional Facility Authority, requests that this Court evaluate the constitutionality of House Bill 4702 (1998),1 a recent enactment of the West Virginia Legislature.2 This bill directs the respondent, the West Virginia Investment Management Board, the group charged with investing the funds of the Public Employees Pension System, to invest $150,000,000 of the pension system funds in the West Virginia Jail and Correctional Facility Authority to enable it to complete the construction or renovation of certain jails and correctional facilities in West Virginia. The issues before us are, inter alia, whether House Bill 4702 constitutes an unconstitutional impairment of the contract existing between the State of West Virginia and the participants and beneficiaries of the Public Retirement System and whether House Bill 4702 violates Article X, Section 4 of the West Virginia Constitution which places limitations on the contracting of State debt.
I.
FACTS
The relator, the West Virginia Regional Jail and Correctional Facility Authority (“Jail Authority”), is a body corporate and governmental instrumentality created by the West Virginia Legislature. It is charged with the financing and construction of jails and correctional facilities in the State and is governed by the provisions of W.Va.Code § 31-20-1 to 31-20-28 as well as various constitutional provisions and decisions of this Court.
The respondent, the West Virginia Investment Management Board (“Board”), is also a body corporate and government instrumentality. It was created by the West Virginia Legislature to manage and invest the funds of West Virginia’s various public employee pension systems. Its authority and powers to make investments are governed by the West Virginia Investment Management Act, W.Va.Code § 12-6-1 to 12-6-19, as well as by various constitutional provisions and decisions of this Court.
During the 1998 Legislative Session, the West Virginia Legislature passed House Bill 4702. The stated purpose of the bill is to finance the ongoing construction and renovation of jails and correctional facilities in West Virginia. The bill directs the Board, the body charged with managing the funds of the Public Employees Retirement System (“PERS”), to invest $150,000,000 of those funds in the Jail Authority for its on-going construction and renovation projects. The purpose of the investment is to enable the completion and construction of jail and correctional facilities. House Bill 4702 prescribes the source of the investment funds, establishes a method for repayment of the [417]*417investment, and sets a market rate of interest.
Specifically, under the provisions of the bill, any PERS funds invested by the Investment Management Board with the Regional Jail Authority must earn an annual return equal to the five year average annualized rate of return earned by the core fixed-income portfolio of PERS, plus one tenth of one percent, and such rate of return shall not be less than five percent. The bill creates a “regional jail and correctional facility investment fund” in the State treasury that is dedicated to the payment of investment earnings and the return of PERS capital invested by the Board in .the Jail Authority. The regional jail and correctional facility investment fund will receive insurance taxes deposited in the “insurance tax fund,” a special revenue fund made up of insurance taxes already established by W.Va.Code §§ 33-3-14 (1983) and 33-3-15 (1957). The bill further provides that monthly payments representing investment earnings and the return of PERS capital invested in the Jail Authority by the Board shall commence six months after funds are invested and cease within twenty-five years when all PERS capital is returned.
The Board has refused transfer of the $150,000,000 to the Jail Authority on the grounds that House Bill 4702 violates constitutional prohibitions against State impairment of contracts and the incurring of State debt. The Board also asserts that the bill raises other legal problems.
II.
STANDARD FOR GRANTING MANDAMUS
It is well-settled that,
[a] writ of mandamus will not issue unless three elements co-exist — (1) a clear legal right in the petitioner to the relief sought;
(2) a legal duty on the part of respondent to do the thing which the petitioner seeks to compel; and (3) the absence of another adequate remedy.
Syllabus Point 2, State ex rel. Kucera v. City of Wheeling, 153 W.Va. 538, 170 S.E.2d 367 (1969). With this in mind, we now review the issues before us.
III.
DISCUSSION
A.
Issue No. 1: Impairment of Contracts
The Board claims, first, that House Bill 4702 unconstitutionally impairs the contract between the State of West Virginia and the members and beneficiaries of the Public Employees Retirement System. According to the Board, House Bill 4702 results in the use of Public Employees Retirement System funds for purposes other than the sole benefit of the Public Employees Retirement System. We disagree.
Article III, Section 4 of the West Virginia Constitution states in part that “[n]o ... law impairing the obligation of a contract, shall be passed.” This is consistent with Article I, Section 10 of the United States Constitution which provides that “[n]o State shall ... pass any ... Law impairing the Obligation of Contracts.” To determine whether legislation impairs a contractual obligation in violation of the federal and state constitutions, this Court has stated the following three-pronged test:
The initial inquiry is whether the statute has substantially impaired the contractual rights of the parties. If a substantial impairment is shown, the second step of the test is to determine whether there is a significant and legitimate public purpose behind the legislation. Finally, if a legitimate public purpose is demonstrated, the court must determine whether the adjustment of the rights and responsibilities of contracting parties is based upon reasonable conditions and is of a character appropriate to the public purpose justifying the legislation’s adoption.
Syllabus Point 4, in part, Shell v. Metropolitan Life Ins. Co., 181 W.Va. 16, 380 S.E.2d 183 (1989). Further, “[t]he severity of the impairment measures the height of the hurdle the state legislation must clear. Minimal alteration of contractual obligations may end the inquiry at its first stage.” Shell, 181 [418]*418W.Va. at 21, 380 S.E.2d at 188, quoting Allied Structural Steel Co., 438 U.S. at 245, 98 S.Ct. at 2722-23, 57 L.Ed.2d at 736-37.
There is no doubt that a contract exists between PERS members and beneficiaries and the State. The Public Employees Retirement System was created by W.Va. Code §§ 5-10-1 et seq. in 1961 to provide a general retirement system for public employees. “A review of the statute reveals a classic example of a ‘statutory’ trust.” Dadisman v. Moore, 181 W.Va. 779, 784, 384 S.E.2d 816, 821 (1988). Further, “[a] statute is treated as a contract when the language and circumstances evince a legislative intent to create private rights of a contractual nature.” Id., 181 W.Va. at 789, 384 S.E.2d at 826, citing United States Trust Co. v. New Jersey, 431 U.S. 1, 17 n. 24, 97 S.Ct. 1505, 1519 n. 24, 52 L.Ed.2d 92 (1977). This Court has held that “[r]etired and active PERS plan participants have contractually vested property rights created by the pension statute, and such property rights are enforceable and cannot be impaired or diminished by the State.” Syllabus Point 16, Dadisman. In order to ensure that the property rights of PERS participants are not impaired or diminished, this Court has stated, “The PERS Board, as trustee of retirement funds, must dispose of them according to the law. The board has a fiduciary duty to protect the fund and the interests of all beneficiaries thereof, and it must exercise due care, diligence, and skill in administering the trust.” Syllabus Point 14, Dadisman. The essence of the contract between the State and PERS members and beneficiaries is that upon a member’s retirement, he or she “shall receive a straight life annuity equal to two percent of his final average salary multiplied by the number of years, and fraction of a year, of his credited service in force at the time of his retirement.” W.Va.Code § 5-10-22 (1971). Also, this Court has stated that “[t]he cynosure of an employee’s W.Va. Const, art. Ill, § 4 contract right to a pension is not the employee’s or even the government’s contribution to the fund; rather, it is the government’s promise to pay.” Syllabus Point 12, Booth v. Sims, 193 W.Va. 323, 456 S.E.2d 167 (1995).
It is obvious, therefore, that not every modification to the State’s existing contract with PERS members is a substantial impairment.
The realization and protection of public employees’ pension property rights is a constitutional obligation of the State. The State cannot divest the plan participants of their rights except by due process, although prospective modifications which do not run afoul of the federal or State impairment clauses are possible.
Syllabus Point 18, Dadisman. Further, this Court has stated:
While the law recognizes that states retain some reserve power to modify by statute existing contractual pension relationships when the public interest so requires, such modifications must be reasonable and necessary to serve important public purposes. Legislative modifications to a pension plan must be reasonable, and the test for reasonableness is whether the alteration to the pension scheme serves to keep the system sound and flexible.
Syllabus Point 17, Dadisman. Legislative modifications have traditionally included amendments and additions to the list of investment vehicles available to PERS funds. See W.Va.Code § 5-10-38 (1961) and W.Va. Code § 12-6-9c (1997).
On September 27, 1997, the citizens of the State ratified the Modern Investment Management Amendment which amended Article X, § 6 of the West Virginia Constitution to read:
The credit of the state shall not be granted to, or in aid of any county, city, township, corporation or person; nor shall the state ever assume, or become responsible for the debts or liabilities of any county, city, township, corporation or person. The investment of state or public funds shall be subject to procedures and guidelines heretofore or hereafter established by the Legislature for the prudent investment of such funds.
This amendment is consistent with the Legislature’s historical power to determine which body manages the investment of PERS funds and how these funds are to be invested. It [419]*419also appears to be a significant expansion of the Legislature’s power to establish the procedures and guidelines for the investment of State monies, with the sole caveat being that these monies must be invested prudently.3
The history of the management of PERS funds reveals that the Modern Investment Management Amendment is simply an expansion of the authority already exercised by the Legislature in this area. This history also reveals the regularity with which modifications and amendments have been made to the system without violating the constitutional prohibition on the impairment of contracts. Over the years, the Legislature has passed legislation transferring investment duties for PERS funds from one State body to another and changing the types of investment vehicles available for PERS funds.
When PERS was initially created, the Board of Public Works was charged with investing the system’s funds “in any securities or investments in which the sinking funds of the state may be legally invested, or in any securities or investments in which the deposits in savings banks and participation deposits in banks and trust companies may be legally invested.” W.Va.Code § 5-10-38 (1961); see Dadisman, supra. W.Va.Code § 13-3-4 (1941) provided that sinking funds were to be invested in the following order: in the political division’s own bonds; bonds issued by other political divisions of the State; bonds or treasury certificates of the United States government; or bonds of this State. Further, W.Va.Code § 5-10-38 provided that every state department or institution issuing any bonds was to make a written offer of these bonds to the Board of Public Works prior to advertising them for sale. The management of PERS funds was subsequently transferred to the Board of Investments which was authorized to invest, inter alia, in the direct and general obligations of the State. See W.Va.Code § 12-6-9(e) (1990). Now, the Investment Management Board manages PERS monies. The Modern Investment Management Amendment further modified the management of PERS funds by expanding the Legislature s power to establish investment guidelines and by increasing the kinds of permissible investments to include common stocks and corporate equities. Finally, in House Bill 4702, the Legislature has exercised its power to authorize the investment of PERS funds in the Jail Authority. This brief history indicates that technical or housekeeping alterations in the management of PERS funds, such as changes in the manager of the funds or an expansion in permissible investments, do not implicate the constitutional provision prohibiting the impairment of contracts. The contract between the State and PERS beneficiaries simply does not extend to such modifications.
The vital parts of the contract between PERS members and the State, rather, is not implicated so long as sufficient funds are provided and the promised pensions are paid. See Syllabus Point 12 of Booth, supra. To ensure that these obligations are met, the Legislature has provided numerous limitations and safeguards governing the investment of PERS funds. See W.Va.Code §§ 12-6-10 (1996) and 12-6-12 (1997). Upon considering the arguments before us, we are not persuaded that House Bill 4702 violates either of the terms mentioned above. The respondent here is challenging the Legislature’s authority to expand the types of investments available to the respondent in its management of PERS funds. This challenge is couched in terms alleging an impairment of a contract. However, the contract between the State and PERS beneficiaries does not include an implied provision that the Legislature will not expand the number or kinds of investments available to the respondent, as long as the vital terms of the contract continue to be met.
The respondent would have this Court assume the role of financial prognosticator and micro-manager of the PERS funds. This we decline to do. It is simply not our task to assess the financial worthiness of the provisions of House Bill 4702. Rather, such [420]*420assessment belongs to the Legislature, and the Legislature has spoken. We presume that the Legislature has spoken in a constitutionally permissible manner.
In considering the constitutionality of a legislative enactment, courts must exercise due restraint, in recognition of the principle of the separation of powers in government among the judicial, legislative and executive branches. Every reasonable construction must be resorted to by the courts in order to sustain constitutionality, and any reasonable doubt must be resolved in favor of the constitutionality of the legislative enactment in question. Courts are not concerned with questions relating to legislative policy. The general powers of the legislature, within constitutional limits, are almost plenary. In considering the constitutionality of an act of the legislature, the negation of legislative power must appear beyond reasonable doubt.
Syllabus Point 1, State ex rel. Appalachian Power Co. v. Gainer, 149 W.Va. 740, 143 S.E.2d 351 (1965). See also Syllabus Point 1, West Virginia Trust Fund, Inc. v. Bailey, 199 W.Va. 463, 485 S.E.2d 407 (1997). The respondent also argues that this investment in the Jail Authority is not permissible because it is not for the sole benefit of PERS. If we accepted this argument in this instance, however, it would effectively bar all investment of PERS funds.4 PERS funds have always been invested in various ways without running afoul of the contractual provisions between the State and PERS beneficiaries. We conclude therefore, that House Bill 4702 does not constitute a substantial impairment to the contractual obligation of the State. The investment is of a limited amount, for a limited time, and to be repaid at an interest rate essentially equal to the rate on other already authorized investments. Accordingly, we find, for the above reasons, that House Bill 4702 (1998), which authorizes the investment of PERS monies in the Regional Jail and Correctional Facility Authority, does not substantially impair the contract rights of PERS beneficiaries. We now proceed to the second issue.
B.
Issue No. 2: Contractual Limitation on the Contracting of State Debt
Second, the respondents claim that House Bill 4702 violates Article X, Section 4 of the West Virginia Constitution which states:
No debt shall be contracted by this State, except to meet casual deficits in the revenue, to redeem a previous liability of the State, to suppress insurrection, repel invasion or defend the State in time of war; but the payment of any liability other than that for the ordinary expenses of the State, shall be equally distributed over a period of at least twenty years.
In Winkler v. State School Bldg. Authority, 189 W.Va. 748, 434 S.E.2d 420 (1993), this Court indicated that Article X, Section 4 does not preclude the State from issuing revenue bonds which are to be redeemed from a special fund under what is called the “special fund doctrine.” In Syllabus Point 2 of State ex rel. Marockie v. Wagoner, 190 W.Va. 467, 438 S.E.2d 810 (1993), this Court explained the special fund doctrine as follows:
The Legislature may not designate funds that will be used to liquidate a revenue bond issue out of a current tax source that flows into the general revenue fund. If this practice were permitted, then a debt would be created that would burden the existing general revenue fund in violation of Section 4 of Article X of the West Virginia Constitution.
Although the relator argues that the provisions of House Bill 4702 fall under the special fund doctrine, we do not agree. As noted above, to repay the capital and to pay the earnings on the investment mandated by House Bill 4702, the insurance taxes already established by statute will be deposited in the insurance tax fund and ultimately trans[421]*421ferred to the regional jail and correction facility investment fund. Previously, however, these same insurance taxes were paid into the State treasury for the benefit of the State fund. Therefore, according to Marock-ie, the Legislature has impermissibly designated funds to repay the capital and the earnings on the investment in the Jail Authority out of a current tax source that flows into the general revenue fund. Because this tax revenue is no longer available to the general fund, a debt is created that burdens the existing revenue fund in violation of Article X, Section 4. We do not believe, however, that this disposes of the issue before us.
This Court has defined the basic intent and purpose of Article X, Section 4 as prohibiting legislative, acts which would bind subsequent legislatures to appropriate money in subsequent fiscal years. See State ex rel. Hall v. Taylor, 154 W.Va. 659, 178 S.E.2d 48 (1970), overruled on other grounds, State ex rel. West Virginia Resource Recovery-Solid Waste Disposal Authority v. Gill, 174 W.Va. 109, 323 S.E.2d 590 (1984). This purpose grew out of “ ‘the experience of the mother state with debts contracted by her,’ of which the framers of our 1872 Constitution were aware and therefore ‘provided that this state should not contract indebtedness, except in specified instances.’ ” Winkler v. State School Bldg. Authority, 189 W.Va. 748, 755-756, 434 S.E.2d 420, 427-428 (1993), quoting Bates v. State Bridge Commission, 109 W.Va. 186, 188, 189, 153 S.E. 305, 306-07 (1930) (footnote omitted). In Syllabus Point 5 of State ex rel. Dyer v. Sims, 134 W.Va. 278, 58 S.E.2d 766 (1950), rev’d on other grounds, 341 U.S. 22, 71 S.Ct. 557, 95 L.Ed. 713 (1951), this Court stated:
Under Section 4, Article X, of the Constitution of this State, the Legislature is without power to create an obligation to appropriate funds, for a purpose not mentioned in said section, by future Legislatures. Such legislation, if otherwise valid, would be void under said section, as creating a debt inhibited thereby.
As the Court later stated in Winkler, 189 W.Va. at 756, 434 S.E.2d at 428, however, “it seems clear that the Court did not literally mean that any contract entered into by a state agency that extended over more than one year was constitutionally infirm,” and noted that “Dyer recognized that by creating state agencies, the Legislature was obligating itself, in a constitutionally permissible manner, to pay‘funds necessary for those agencies’ operational expenses from future general revenue funds.” Likewise, as noted in Winkler, this Court has approved lease payments used to retire revenue bonds issued for building construction in State ex rel. State Bldg. Comm’n v. Moore, 155 W.Va. 212, 184 S.E.2d 94 (1971); an energy supply contract entered into by West Virginia University in State ex rel. West Virginia Resource Recovery-Solid Waste Disposal Authority v. Gill, 174 W.Va. 109, 323 S.E.2d 590 (1984), overruled on other grounds, Winkler, supra; the issuance of industrial and commercial revenue bonds under W.Va.Code § 13-2C-1 such as in State ex rel. Ohio County Comm’n v. Samol, 165 W.Va. 714, 275 S.E.2d 2 (1980); and, finally, those debts allowed under the recently articulated special fund doctrine.
In the present case, the Legislature designated a specific source of revenue as a funding mechanism and limited the amount dedicated and transferred annually from that fund to the Jail Authority. This is in accord with its authority under the new investment amendment to establish guidelines and procedures for the prudent investment of State or public funds. Considering the great importance of constructing, renovating, and repairing jails and correctional centers so as to meet constitutional requirements for the housing of prisoners, we believe the built-in limitations contained in House Bill 4702 are in sufficient conformity with the requirements of Article X, Section 4, and override the narrow strictures of the special fund doctrine as articulated in Marockie.5 There[422]*422fore, we find that Syllabus Point 2 of State ex rel. Marockie v. Wagoner, 190 W.Va. 467, 438 S.E.2d 810 (1993), which holds the Legislature may not designate funds that will be used to liquidate a revenue bond issue out of a current tax source which flows into the general revenue fund, is overruled to the extent that it prevents the Legislature from exercising its power to prudently invest State or public funds pursuant to Article X, Section 6 of the West Virginia Constitution, the Modem Investment Management Amendment. Also, we find that House Bill 4702 does not violate the limitation on the contracting of State debt in Article X, Section 4 of the West Virginia Constitution.6
C.
Issue No. 3: Deprivation of Property Rights Without Due Process
Third, the respondent claims that House Bill 4702 deprives PERS participants of their property rights in the PERS fund without due process of law.
The Fourteenth Amendment is not an independent source of property rights. The due process clause protects only those property interests already acquired as a result of “existing rules or understandings that stem from an independent source such as state law — rules or understandings that secure certain benefits and that support claims of entitlement to those benefits.”
Gotkin v. Miller, 514 F.2d 125, 128 (2nd Cir.1975), quoting, in part, Board of Regents of State Colleges v. Roth, 408 U.S. 564, 92 5.Ct. 2701, 33 L.Ed.2d 548 (1972) (citation omitted). It is undisputed that PERS participants have contractually vested property rights created by the pension statute. See Syllabus Point 16, Dadisman. In other words, beneficiaries have a vested right in receiving their pension benefits. They do not, however, have a vested right in controlling the investment policies of the respondent. This task, rather, is set by the Legislature and the Investment Management Board. Also, “[u]ntil funds are withdrawn and paid out to individual members of the Public Employees Retirement System, the state has a beneficial ownership interest in such funds[.]” Syllabus Point 3, in part, State ex rel. Gainer v. West Virginia Bd. of Invest., 194 W.Va. 143, 459 S.E.2d 531 (1995). We find, therefore, that House Bill 4702 does not implicate the constitutional due process guarantees of PERS beneficiaries as long- as the State continues to pay PERS beneficiaries.
D.
Additional Issues
The respondent also avers that House Bill 4702 violates W.Va.Code § 12-6-11 concerning the fiduciary duty of the Board in making investments. We believe, however, that W.Va.Code § 12-6-11 must be read in light of the Modern Investment Amend[423]*423ment to Article X, Section 6 of the West Virginia Constitution. When this is done, we find no conflict between House Bill 4702 and W.Va.Code § 12-6-11. Therefore, we find that this argument of the respondent is without merit. Concerning the respondent’s other arguments, for the reasons stated above, we find that House Bill 4702 does not, on its face, mandate the violation of the West Virginia Management Board’s fiduciary duty to PERS beneficiaries.7 Also, because we find that the expansion of investment vehicles to include investment in the Jail Authority does not constitute a substantial impairment of the PERS contract, we believe that the involvement of PERS beneficiaries is not necessary for the adjudication of this action. Finally, because we believe the investment and transfer of funds by the Board to the Jail Authority is a non-discretionary ministerial duty established by the Legislature in its enactment of House Bill 4702, we find that mandamus lies to compel the action sought by the relator.
We find, therefore, for the reasons stated above, that there is no legal prohibition on the operation of House Bill 4702. Consequently, we believe the three elements necessary for the issuance of a writ of mandamus are present here. Accordingly, we grant the writ of mandamus sought by the relator.
Further, we deem it important to state the following. First, we grant the writ sought herein because we believe House Bill 4702 is simply another modification made by the Legislature to the statutorily prescribed investment vehicles available to the Investment Management Board in its management of PERS funds, and that nothing in our constitution prohibits this action. We believe that our holding is consistent, for the most part, with the history of the management of PERS funds, Legislative modifications governing this management, and this Court’s previous holdings.
Second, absolutely nothing in this decision should be seen as a retreat from this Court’s holdings in Dadisman. We believe that our decision here in no way conflicts with Dadis-man. Rather, we wish to reiterate specifically the vested property rights in PERS plan participants created by the pension statute, the constitutional obligation of the State to protect these property rights, and the duty of the Investment Management Board to manage the PERS fund according to the highest fiduciary standards.
Third, the presence of the funding mechanism contained in House Bill 4702 is integral to our finding that the bill meets constitutional standards. It is imperative to the continued actuarial soundness of PERS funds that this funding mechanism operate as provided.
Finally, as stated above, it is vital that PERS remain on a sound actuarial basis and that the State continue to meet its obligation to pay beneficiaries. If either of these conditions are threatened, there is nothing to prevent the parties to the statutory contract created in PERS from bringing a cause of action for breach of fiduciary duty.
IV.
CONCLUSION
Accordingly, we grant the writ of mandamus sought by the relator.
Writ granted.