Description:Footage obtained by a Brooklyn lawyer who says it's proof of an illegal stop-and-frisk by an NYPD cop. A camera mounted on a Flatbush building recorded a rough encounter between Jurard St. Hillaire and an unidentified plainclothes cop last June. St. Hillaire, 21, was recording a police car stop on Newkirk Ave. — a constitutionally protected action — when the officer approached and pushed him aggressively against the brick wall.(4:31)