Ala. Code § 36-21-74
Any member shall be entitled at any time to withdraw from the fund and, upon application for such withdrawal on forms to be supplied by the board and approved by it, shall be entitled to receive 90 percent of all amounts heretofore paid to the fund by such member. Any member who withdraws and receives such refund shall not thereafter have any rights with respect to the fund and may not thereafter be entitled to become a member except as a new member. Any member who ceases to be a peace officer may elect not to receive any such refund for a period of not more than 36 months. If within the said 36 months' period the said person shall again become a peace officer, he may be reinstated as a member without loss of his accumulated qualified service. If a member does not return to service at the end of the 36 months' period, then his account shall be terminated and his fees shall be returned to him, thereby cancelling all his qualified service.
Ala. Code § 36-21-74 (1975)