Republican state and city lawmakers on Thursday protested the parole of Herman Bell, who was one of three men convicted of killing two police officers in 1971.

In a statement, Senate Majority Leader John Flanagan called on the parole board members who supported Bell’s released to be removed.

“What message does this indefensible release send to the victims’ families or to our brave law enforcement officials across the state that an individual could commit such a heinous act and still be set free to live and breathe with other New Yorkers?” Flanagan said in a statement.

“Herman Bell is a callous and depraved cop-killer who took the lives of two police officers just because they wore the uniform. He has forfeited his ability to live outside of the four walls of a prison cell. The members of the Parole Board who made this decision should be removed immediately.”

Supporters of Bell’s release from prison note his age at the time of the crime and his record of good behavior while serving time in prison. He has also expressed remorse for the crime after maintaining his innocence.

Still, Republicans and law enforcement officials decried the move. Sen. John DeFrancisco, a Republican candidate for governor, called it “utter insanity.”

“What we are seeing in this awful decision is progressivism gone mad,” he said. “Bell’s victims remain in the ground; their families continue to grieve, and Bell will walk free.”

Dutchess County Executive Marc Molinaro, who like DeFrancisco is seeking the GOP nomination for governor, also criticized the parole board’s decision.

“The decision by Governor Cuomo’s Parole Board is a travesty of justice and a bitter insult to the law enforcement community,” he said. “If it was my Parole Board, I would ask for their resignations – today.”

Conservative Party Chairman Mike Long, meanwhile, called on Gov. Andrew Cuomo to rescind the parole board’s decision.

“Up until now, Herman Bell had absolutely no remorse for killing two police officers,” Long said. “In fact, after his 6th denial of parole, he sued for his freedom — because he was a changed man who played the flute.”