A state lawmaker’s call for the ban of police’s use of facial recognition is facing unsurprising public push back from New York City law enforcement — with one former NYPD top cop calling the proposed ban “asinine” on Sunday.

“That proposal up in Albany is insane,” former police commissioner Bill Bratton told John Catsimatidis on “The Cats Roundtable” on AM 970 in New York. “Being quite frank with you, I don’t think they know much about facial recognition or the current state of it.”

Bratton claimed the tech helps prevent innocent people from being jailed based on unreliable eyewitness testimony — but said that law enforcement was open to regulations with the “exploding” industry in the private sector.

“Let’s talk about it, let’s discuss it, debate it,” Bratton said. “Facial recognition is exploding in the private sector, whether or not the Senate wants to ban it for police, which is asinine in my perspective, the private sector is going to develop and use it. It’s here and it’s going to expand and that’s the reality of it.”

Sen. Brad Hoylman (D-Manhattan) introduced the extensive prohibition on the technology for police officers Monday, citing The Post’s article on the NYPD’s unofficial connection to controversial facial recognition company Clearview AI.

Only three states in the US — California, New Hampshire and Oregon — have banned the tech for law enforcement use.

Bratton’s comments Sunday echoed much of what current Police Commissioner Dermot Shea said Tuesday at the State of The NYPD address at the annual Police Foundation breakfast.

“If we lost [facial recognition] it would be a significant blow to how we fight crime in New York City,” Shea said when asked about the proposed ban.

The commissioner told the crowd that the department — which has embraced the technology, creating a dedicated unit with fewer than a dozen detectives — only compares crime scene photos against their internal arrest database.

Shea, though, acknowledged the concern from opponents and privacy advocates and called for transparency on the software’s use.

“Some technology scares people and I think we can’t be blind to that,” Shea said. “It’s about transparency and telling people our intentions and our policy. When you invoke facial recognition and 100 different people will have 100 different images in their mind of what that means.”

“We welcome any discussions on it and it’s on us to be transparent as possible on it.”

The NYPD, which has used facial recognition since 2011, does not have a public policy on the technology.

A department spokesperson has said the NYPD does “not engage in mass or random collection of facial records from NYPD camera systems, the internet, or social media.”

“A facial recognition match is solely a lead—no one has ever been arrested solely on the basis of a computer match, no matter how compelling,” the spokesperson previously said.