Notwithstanding the provisions of section 2 of this chapter, any constable who:

1. (1) is not otherwise eligible for membership in the public employees' retirement fund; and

2. (2) was enrolled erroneously in the public employees' retirement fund as a contributing member;

   is eligible for membership in the public employees' retirement fund and is entitled to receive the benefits provided by that fund.

   As added by Acts 1981, P.L.51, SEC.1.