I doubt if Police would want to go wandering airside areas in the hope of catching a pilot out.
Would it not be better for airlines to install a hand held machine in the loo of where ever pilots check in? That way, if someone thinks they may have had too much the night before they can do a sneeky check before they check in? Doing it before checking in should get round the ancilary fuction bit, and possibly save thier licence.
FL..
Does the fact that the offence can be commited 'anywher in the world' mean that an aledged offence in say the US could be dropped in favour of a UK court taking juristiction more promptly?