New York ? A taunting missive containing a white powder that was sent to a police station ended with “Catch me if you can.”

Police had no trouble catching the suspect: He signed the letter and included his return address on the envelope.

Abdullah Date, 18, was charged with sending the threatening letter to the 73rd Precinct in Brooklyn and ordered held without bail, according to a criminal complaint unsealed Thursday in Brooklyn federal court. The white powder turned out to be harmless.

Authorities said Date, who was arrested Tuesday, has had other run-ins with police. But the complaint only addressed an incident last month in which Date allegedly threw vials of crack out of the window of his Brooklyn home while police watched.

The obscenity-filled letter, which authorities said was mailed in anger over the drug bust, said: “Ha, Ha (you) thought it was anthrax.” It ended with “Catch me if you can,” and was signed “Abdullah Date,” according to the complaint. His home address appeared on the envelope, it said.