A months-long investigation by the AP, published Wednesday, revealed that the NYPD has dispatched teams of undercover officers, known as “rakers,” into minority neighborhoods as part of a human mapping program, according to officials directly involved in the program. They’ve monitored daily life in bookstores, bars, cafes and nightclubs. Police have also used informants, known as “mosque crawlers,” to monitor sermons, even when there’s no evidence of wrongdoing. NYPD officials have scrutinized imams and gathered intelligence on cab drivers and food cart vendors, jobs often done by Muslims.

Many of the operations were built with help from the CIA, which is prohibited from spying on Americans but was instrumental in transforming the NYPD’s intelligence unit after the September 2001 terror attacks.

The NYPD denied that it trolls ethnic neighborhoods and said it only follows leads. The mayor on Thursday defended the police department’s efforts…

“The NYPD’s credibility is bankrupt in our communities,” Fahd Ahmed, legal and policy director of the Desis Rising Up & Moving group, said in a statement Thursday. “We need accountability, transparency and an overhaul of tactics and policies.”