Architect of Stop & Frisk Takes Charge as "Progressive" NYC Mayor's Police Chief

William Bratton was sworn in as New York City's police commissioner on Thursday afternoon, marking the start of his second term at the helm of the city's police department and his first under progressive new mayor Bill de Blasio.

De Blasio surged to prominence in polls this summer as he promised to end what he described as an era of abuse and racial discrimination in the nation's largest police force. But civil-liberties advocates and black and Latino community leaders have stopped short of applauding his choice for top cop.

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