Muslim -owned business , mosques and student groups were monitored . New York police spokesman Paul Browne said their Newark counterparts were `` briefed before and afterwards , and a Newark liaison officer accompanied NYPD personnel when they were in Newark . '' Muslim leaders had called for an investigation after report became public . Corey Booker Mayor Booker said probe `` clearly crosses a line '' Corey Booker said his police were not involved in the New York Police Department joint operation .
Muslim -owned business , mosques and student groups were monitored . Muslim leaders had called for an investigation after report became public . Corey Booker Mayor Booker said probe `` clearly crosses a line '' Corey Booker said his police were not involved in the New York Police Department joint operation .