(a) Each payroll period, each department or agency of the state shall cause to be deducted from the compensation of a member subject to this chapter a contribution of six percent of the compensation of the member.
(b) In addition to the contribution under Subsection (a), each department or agency of the state that employs a law enforcement or custodial officer who is a member subject to this chapter shall deduct an additional two percent contribution from the member’s compensation, to be deposited in the law enforcement and custodial officer supplemental retirement fund.