@WillowRun6-3
ICAO/civil aviation des not deal with passports of passengers excepting that all international passengers must comply with immigration requirements of destination state to be permitted to board. The PIC has authority over all souls on board, irrespective of nationality. What is currently under some review is how to handle any possible conflicts between the law under which the PIC exercises authority (the law of the state of registry) and the law of the destination where anyone ordered to be restrained by the PIC is taken over by local law enforcement.