Ala. Code § 45-28A-42.17: Rewards for Contributions.

No officer or other member of the police or fire department, or other person, shall in any wise undertake or threaten to degrade, discharge, or promote, or in any manner change the official rank or pay of any officer or employee, or promise or threaten to do so, for giving or withholding, or neglecting to make any contribution of money or any valuable thing for any party or for any political purpose whatsoever. No employee of the police or fire department shall receive any promotion as a reward for his or her support of any candidate or political party. No employee of either department shall be reduced in rank or pay as punishment for his or her failure to support any candidate for political office.