A supervising detective involved in Manhattan District Attorney Alvin Bragg’s Donald Trump prosecution has been suspended for his contact with the former president’s ex-lawyer and bitter adversary Michael Cohen, law enforcement sources told The Post. 

Jeremy Rosenberg, who investigates financial crimes for Bragg, had his gun removed recently for his interactions with Cohen, the sources claimed.

Bragg’s office said it was looking at how Rosenberg “went about sharing communications” with Cohen.

“The office is conducting a review of an investigator’s compliance with internal office protocols,” a Bragg spokeswoman said.

Defense lawyer and former Manhattan prosecutor Mark Bederow said the suspension might not affect the case against Trump but that the defense would likely want to know what led to the review.

“Why would there be any reason for a detective investigator to share information and communications from other individuals with Michael Cohen?” Bederow asked. “I don’t know who’s more at fault here but it’s another example of how toxic Cohen is and why any case that involves him so much is, it’s not ideal.”

Rosenberg also assisted in the prosecution of Steve Bannon in the alleged $15 million border-wall fundraising scam, for which Trump pardoned him. He did not return a call for comment.

And he worked on recent investigations into cryptocurrency and drug dealing on the dark web, Bragg’s office said.

Critics ripped the suspension as an “extremely political” move by soft-on-crime Bragg.

“The only other place I could compare this to is the FBI,” said retired Detective Investigators Association President John Fleming.

Bragg indicted Trump earlier this year for a $130,000 hush payment he allegedly made to former porn star Stormy Daniels shortly before the 2016 election to keep quiet about her alleged affair with Trump a decade earlier.

Cohen turned against Trump and cooperated with Bragg’s investigation into Trump after he went to prison and served home confinement for campaign finance crimes and lying to Congress.

Trump called the indictment “political persecution and election interference at the high levels in history” and referred to Bragg as “a disgrace.” Trump has since sued Cohen for $500 million, alleging he “spread falsehoods” about him and violated a confidentiality agreement.