Three plainclothes policemen suddenly threw open the door, pulled him to the ground and began to kick and punch him.
The plainclothes policeman with them hung them on our railings.
At least plainclothes officers could look relatively inconspicuous.
The same applies to the use of plainclothes policemen.
He was unable to identify the plainclothes men.
He will recollect from that letter that there had been three previous visits by plainclothes officials—who did not arrive in any form of police vehicle—before the van arrived.
After the demonstrators began running away from the main square, hundreds were rounded up by plainclothes police as well as riot police.
Plainclothes officers dress in attire consistent with that worn by the general public for purposes of blending in.
