There is hereby established the Pro Hac Vice Fund, a special, nonreverting fund comprised of moneys collected pursuant to Rule 1A:4 of the Rules of the Supreme Court and subsection B of § 17.1-328. The Fund shall be established on the books of the Comptroller. All moneys received by the Clerk of the Supreme Court for this Fund shall be paid into the state treasury and credited to the Fund. Interest earned on moneys in the Fund shall remain in the Fund and be credited to it. Any moneys remaining in the Fund, including interest thereon, at the end of each fiscal year shall not revert to the general fund but shall remain in the Fund. Moneys in the Fund shall be used solely for the purpose of improving the administration of justice. Expenditures and disbursements from the Fund shall be made by the State Treasurer on warrants issued by the Comptroller upon written authorization of the Executive Secretary of the Supreme Court.