The men are "slick boys," the street nickname for plainclothes police officers.

The plainclothes police officer handed him a fifty-cent piece and pointed.

The prospective buyers turned out to be plainclothes police officers.

He doesn't want to make waves with the plainclothes police officers on patrol.

Witnesses in Oaxaca said a plainclothes police officer was responsible for his death.

A burglar did enter the store - followed by plainclothes police officers.

The second time he and his crew thought they were being pulled over by plainclothes police officers doing cargo checks.

Next to arrive looked like a plainclothes police officer.

Several students were wounded, and five are said to have vanished after being taken away by plainclothes police officers.

Beyond question, this was the plainclothes police officer with the birthmark.