Ala. Code § 45-37-210.29

In the event the evidence produced by a photographic traffic signal enforcement system does not produce an image of the license plate with sufficient clarity for a traffic enforcement officer to determine the identity of the owner, and if the identity cannot otherwise be reliably established, then no notice of violation may be issued pursuant to this part. If, however, a notice of violation is issued, to the degree constitutionally allowed, those issues related to the identity of the vehicle or its owner shall affect the weight to be accorded the evidence and shall not affect its admissibility.