New York’s Finest is wants to take a bite out of the city’s police watchdog. The supervisor of the investigators who probe civilian complaints against cops, along with seven underlings, have made anti-police statements and participated in radical political groups, according to the city’s largest police union – which is demanding they be fired. The Police Benevolent Association found that the Civilian Complaint Review Board investigators, all hired after 2020, aren’t shy about cop bashing. Eight of the 100 investigators who probe civilian complaints against cops have made anti-police statements and participated in lefty political groups in the past, according to the Police Benevolent Association. Alessandra Mularoni Supervisor of Investigators Stephen DiFiore wrote on X that Mayor Mamdani’s decision to keep Jessica Tisch on as police commissioner was “a complete tactical and moral failure.…