From a list, compiled by Georgetown University law professor David Cole, of characteristics included in the "drug-courier profiles" that are used by U.S. law-enforcement officials:

Arrived late at night
Arrived early in the morning
Arrived in afternoon
One of first to deplane
One of last to deplane
Deplaned in the middle
Purchased ticket at airport
Made reservation on short notice
Bought coach ticket
Bought first-class ticket
Used one-way ticket
Used round-trip ticket
Paid for ticket with cash
Paid for ticket with small-denomination currency
Paid for ticket with large-denomination currency
Made local telephone call after deplaning
Made long-distance call after deplaning
Pretended to make telephone call
Traveled from New York to Los Angeles
Traveled to Houston
No luggage
Brand-new luggage
Carried a small bag
Carried a medium-sized bag
Carried two bulky garment bags
Carried two heavy briefcases
Carried four pieces of luggage
Overly protective of luggage
Dissociated self from luggage
Traveled alone
Traveled with a companion
Acted too nervous
Acted too calm
Made eye contact with officer
Avoided making eye contact with officer
Wore expensive clothing and gold jewelry
Dressed casually
Went to rest room after deplaning
Walked quickly through airport
Walked slowly through airport
Walked aimlessly through airport
Left airport by taxi
Left airport by limousine
Left airport by private car
Left airport by hotel courtesy van
Suspect was Hispanic
Suspect was black female

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