By Alex Ginsberg
New York Post
NEW YORK — A Brooklyn transit cop stared down three of his brother officers yesterday, telling a rapt jury how he saw one of them shove a retractable baton into a man's buttocks as they tried to arrest him.
Officer Kevin Maloney, 27 - an obviously uncomfortable star witness in the Brooklyn DA's case in Supreme Court against the cops - said he was helping cuff the prisoner, Michael Mineo, as he lay on the floor of the Prospect Park subway station when he saw fellow officer Richard Kern gripping the baton.
NY officer testifies against accused cops at trial