Stop-and-Frisk Monitor for the NYPD

A federal judge has decided that the NYPD needs a monitor to oversee stop-and-frisk. Samuel Walker, emeritus professor of criminal justice at the University of Nebraska at Omaha and author of several works on civil liberties and police oversight, including Presidents and Civil Liberties From Wilson to Obama, explains the authority a monitor would have and other examples of such oversight from around the country.