When the police have reasonable suspicion, but not probable cause, to believe th

When the police have reasonable suspicion, but not probable cause, to believe that a passenger who is about to board an airplane has drugs in his or her travel bag, they may:

a. stop the passenger and prevent him or her from boarding unless he or she opens the travel bag and allows them to look inside.

b. detain the passenger’s travel bag and subject it to a canine examination.

c. perform a pat-down search of the passenger’s outer clothing to feel for the presence of drugs.

d. detain the traveler’s bag while applying for a search warrant to open it.