Any person who shall knowingly make any false statement, or shall falsify or permit to be falsified, any record or records of the retirement system herein established in any attempt to defraud such system, shall be guilty of a misdemeanor, and, upon conviction thereof, shall be sentenced to pay a fine not exceeding one thousand dollars ($1,000), or undergo imprisonment not exceeding one year, or both.

Should any such change in records fraudulently made, or any mistake in records inadvertently made, result in any contributor or beneficiary receiving more or less than he would have been entitled to had the records been correct, on the discovery of the error, the board shall correct the error, and shall adjust the payments which shall be made to the contributor or annuitant in such manner that the actuarial equivalent of the benefit to which he was correctly entitled shall be paid.