Tell the authorities who, when and where you saw something, and specifically what you saw. Be sure to note the number of the bus or train, or name of the transit station. Explain why you thought there was cause for suspicion.
If there are transit personnel nearby, tell them. Don’t be afraid to report something, even if you aren’t sure it was serious.
CALL THE POLICE
If you cannot easily locate someone in uniform, call the police at the following numbers:
Washington, DC: 202-962-2121
For imminent threats call 911.