(1) Did Officer Green’s removal of Sam’s bag from the overhead compartment and putting it on the seat below constitute a seizure within the meaning of the Fourth Amendment?
(2) Did exposing Sam’s bag to an examination by Buff constitute a search?
(3) Did Officer Green’s removal of Sam’s bag from the bus when no one claimed it constitute a seizure?
(4) Did Officer Green’s subsequent opening of Sam’s bag and examining the contents constitute a search