Though not officially recognized by the NYPD, the laminated cards have long been treated as a perk of the job. The city’s police unions issue them to members, who circulate them among those who want to signal their NYPD connections — often to get out of minor infraction like speeding or failing to wear a seat belt.

In a federal lawsuit filed in Manhattan this week, Officer Mathew Bianchi described a practice of selective enforcement with consequences for officers who don’t follow the unwritten policy. Current and retired officers now have access to hundreds of cards, giving them away in exchange for a discount on a meal or a home improvement job, he said.

In the Staten Island precinct where he works, a predominantly white area with a high percentage of cops and other city workers, Bianchi said multitudes of people he pulled over for traffic infractions flashed him one of the cards.