Mayor Bill de Blasio on Monday admitted to intervening in the prosecution of an accused anti-Semitic attacker, but claimed it had nothing to do with negative publicity about bail reform.

“I absolutely made an inquiry,” de Blasio said at an unrelated Queens press conference about crime statistics.

The mayor was confirming a Post article reporting that City Hall reached out to the state Office of Court Administration on New Year’s Eve about Tiffany Harris. The 30-year-old Brooklyn resident’s repeated release from custody after multiple arrests for alleged attacks against Jews made her a symbol of revolving-door justice amid the state’s new bail reform law.

The mayor’s office contacted the court after learning that Harris was allegedly uncooperative with a social worker after she was set free under supervised release following her second arrest, according to a source.

“We’re on the cusp of reform taking place in a few hours from now, and that was not the press they wanted, so what they did was they tried to find a way to intervene in the court process,” Harris’ public defender Lisa Schreibersdorf complained to Judge Michael Yavinsky at the City Hall-prompted hearing on Dec. 31.

The new law eliminating cash bail for all misdemeanors began on Jan. 1.

The judge ultimately issued a bench warrant for Harris’ arrest and she was admitted to a psych ward for an evaluation.

De Blasio said Monday the evaluation should have happened after Harris showed a pattern of violence combined with documented mental illness.

“That is supposed to trigger a full review of the individual to see what needs to be done including what kind of required mental health support they need to get,” de Blasio said.

But, he insisted, “The issue here has nothing to do with bail or bail reform.”

“The issue here is that you’ve seen for decades folks with that combination of a documented mental health problem and a documented violence problem, but there was no protocol for dealing with it that was actually functional,” de Blasio said.