(a) A trust fund for the Judicial Retirement System of Texas Plan Two is established in the state treasury.
(b) The board of trustees may establish such accounts for money in the trust fund of the retirement system as it considers necessary, in addition to members' individual accounts, for the administration of the system. All assets of the retirement system are creditable, according to the purpose for which they are held, to an appropriate account.
(c) The retirement system may transfer assets from one account to another, except from one member's individual account to another's, to pay benefits and administrative expenses as needed.