(a) This Code section shall apply to public employees first or again becoming public employees after July 1, 1985.

(b) If a public employee commits a public employment related crime in the capacity of a public employee and is convicted for the commission of such crime, such employee shall forfeit all rights and benefits under and membership in any public retirement system in which the employee is a member, effective on the date of final conviction. Any such public employee shall not at any time after such final conviction be eligible for membership in any public retirement system. Any employee contributions made by any such public employee to any public retirement system during membership in the public retirement system shall be reimbursed, without interest, to the public employee within 60 days after the date of final conviction for the commission of a public employment related crime.