Originally Posted by
rbwpi
Can you be arrested for failing to obey a FA if their request has nothing to do with the safe operation of the aircraft?
The crew can call the applicable law enforcement agency and ask them to take you into custody upon landing. The law enforcement agency will do so on their request. You might be able to argue your way out of their hands on this basis after the fact, but not immediately. If you do, which is far from certain, you may be able to claim that you were not technically arrested - but you will surely go through a lot of hassle and waste a lot of time until that happens.