§ 216. Constitutional convention delegates and employees. a. Notwithstanding anything to the contrary contained in this article or any other section of this chapter or any other provision of any general or local law, a member retired from any public pension system of the state, elected as a delegate of the convention to revise and amend the constitution of the state in the year nineteen hundred sixty-seven, or serving as an employee of such convention may serve and earn compensation in such position without any effect on his status as such retired member and without suspension or diminution of his retirement allowance.

b. Member service credit may not be purchased or granted in any retirement system or pension plan administered by the state or any of its political subdivisions for any period of service in the capacity prescribed by subdivision a.