(a) With the exception of those employees whose compensation is fixed by statute, the judges of the Supreme Court shall, from time to time, prescribe the compensation plan for all employees of the Supreme Court and the Superior Court and other employees of the Judicial Department.

(b) The compensation plan may include regulations concerning employee hiring and separation practices, sick leave, vacation leave, absences with and without pay, longevity payments, increments and all other matters regarding personnel policies and procedures. The judges of the Supreme Court shall establish such job classifications as they deem necessary as part of the plan.

(c) Notwithstanding the provisions of this section, subsection (c) of § 5-247 and subsection (d) of § 5-250, sick leave accruals earned by employees of the Judicial Department prior to June 30, 1967, may be credited for payment on retirement under regulations promulgated by the judges of the Supreme Court pursuant to the provisions of this section.