Not so sure
Hmmmm. I'm not so sure.
I recall walking (exiting) through the staff channel at BHX with a keen FO, and being asked for our passes by a Bobby with no Airport ID. My mate asked "what's this all about"? & was threatened by the afore mentioned Bobby. Someone had entered the Security Perimiter and set alight to a Police helecopter. "Can't be too sure, Sir". Why go outside in the cold when crews with valid ID's might be an easy target?