The distinction between being photographed casually and randomly by security cameras in any private business, and being forced to have to submit a close-up mug shot should be obvious to all Canadians.
I know of no gun shop other than P&D that requires it.
After all, they ask that you to:
1) Stand in front of an eye-level wall-mounted camera that is only 3 feet away.
2) Remove your medical mask that is required by law in Edmonton while in businesses.
3) Pose for the camera while it records your face in high-definition.
4) Allow that photograph to be loaded into a data-base that tracks when you visit their store and how often that you visited.
Otherwise, you can't shop there and buy a damn thing, whether that thing requires a PAL or not.
Certainly Cabelas and Bass Pro does not require it.
Certainly the larger and smaller gun shops in Alberta do not require it.
Only P&D requires it.