Public Advocate Bill de Blasio plans to announce a proposal to reduce the number of unwarranted "stop and frisks" conducted by the NYPD.
The expected mayoral candidate is holding a press conference on Wednesday to launch the campaign aimed at reforming the controversial police technique.
He says he also wants to repair relations between law enforcement and communities.
Police conducted more than 684,000 street stops last year. Police say the stops are crucial for fighting crime.
Civil rights groups say the tactic unfairly targets minorities.
Get the latest from NBC 4 New York anytime, anywhere. Follow us on Twitter, Facebook and Google+. Get our apps here and sign up for email newsletters here. Get breaking news delivered right to your phone -- just text NYBREAKING to 639710. For more info, text HELP. To end, text STOP. Message and data rates may apply.