Code of Alabama
Division 2 - Competency.
Section 12-21-162 - Witness Convicted of Crime.

(a) No objection must be allowed to the competency of a witness because of his conviction for any crime, except perjury or subornation of perjury.
(b) As affecting his credibility, a witness may be examined touching his conviction for a crime involving moral turpitude, and his answers may be contradicted by other evidence.