A federal appeals court decided not to toss out a ruling that found the NYPD's stop and frisk policy is discriminatory.
The city was pushing for Judge Shira Scheindlin's ruling to be thrown out because she was removed from the case by a panel of judges who said she gave the appearance of bias.
Mayor-elect Bill de Blasio has said he would end the practice when he takes office.
New York Civil Liberties Union Executive Director released a statement following the ruling.
"Today's ruling will help the Police Department get on track and change the way it utilizes stop-and-frisk, limiting street stops to suspicious behavior only, as the law requires,” reads the statement, in part.
The city released its own statement.
"The City is moving ahead full speed with its appeal, and we maintain that the City's police force has acted lawfully in its application of stop, question and frisk,” said Corporation Counsel’s Michael Cardozo of the New York City Law Department.