If you ask a reasonable request from a pax and they do not obey it, then inform the captain and the pax will be arrested on arrival by police. Make sure the police come on board the aircraft with all the other pax still seated and have the pax in question escorted off. The embarassment should be enough punishment for there crime.
They police will release them after about 1 hour or so.
And make sure you have a report written to give to the police or you too might have to wait for an hour.
