Princeton University Prof. Cornel West, a public intellectual, was arrested Friday, the second time this week, at an Occupy Wall Street rally in Harlem protesting outside a police precinct against the NYPD's stop and frisk policy.

In a video uploaded by The New York Times' Corey Kilgannon, West is seen slowly turning around and putting his hands behind his back to allow a police officer to handcuff him. The crowd behind West, meanwhile, is chanting, We won't stop until we stop 'stop and frisk.'

The stop and frisk policy allows police officers to stop anyone and search them. These searches, which target primarily blacks and Latinos, have led to an increase arrests for possessing small amounts of marijuana.

The New York Civil Liberties Union, a critic of the practice, says that roughly nine out of 10 stopped by the police are black and Latino

On Sunday, West, an author who discusses race and class issues, was one of 19 arrested in Washington, D.C., for refusing to leave the steps of the U.S. Supreme Court.