Originally Posted by
TCAS FAN
Couldn't answer that, but from what I saw at Gloucester a few years ago when they had a LET 410 schedule from/to IOM there appeared to be full passenger screening facilities.
I've been on a few inter-island flights in Orkney and, to my knowledge there are no physical passenger screening requirements at all. Might be some electronic checks on your criminal record etc. but nothing physical. Last time I flew out of one of the outer island airports I don't think I even set foot in the terminal, just gave my name and walked through the gate (literally, a five bar gate in the 4-foot-high airfield wall) to the aircraft.
EDITED TO ADD: Not sure if this is relevant, but airfield security seems to be less regulated at airfields only served by sub-approx-20-passengers flights. At Scilly, St Mary's (as at outer island airports in Orkney) there is no physical barrier to walking on to the airfield from the approach road.