Mayor Eric Adams is allowing federal immigration authorities to establish an office at Rikers Island, following through on a promise he made during recent meetings with “border czar” Tom Homan.

The move comes several weeks after Adams appeared alongside Homan on Fox News, where Homan joked he would put pressure on the mayor if he failed to act.

First Deputy Mayor Randy Mastro signed an executive order late Tuesday that permits U.S. Immigration and Customs Enforcement to set up an office at the jail facility. Adams delegated to Mastro to lead the effort, who said the collaboration will only support criminal investigations by ICE and not civil immigration matters.

“Today, I have entered an executive order to re-establish a federal law enforcement office space at Rikers Island solely for criminal investigations, consistent with New York City law, after Mayor Adams delegated all powers and responsibilities related to this topic to me,” Mastro said in a statement. “This directive is driven by one priority and one priority alone: to keep all New Yorkers safe.”

Mastro said the city previously maintained similar arrangements with federal agencies and helps crack down on violent gangs.

He said the new office would now help correction investigators collaborate with federal agencies like the FBI, Drug Enforcement Administration and Homeland Security to target “terrorist organizations.”

In an interview with Spectrum Noticias, Adams said the policy is about protecting communities from dangerous individuals.

“When you have our current laws that state, if someone is in Rikers Island, they have been charged with a crime, we can't turn them over to ICE,” Adams said. “Would that be an easier way to do it instead of going into communities where innocent people are? I think it would be.”

But the move was immediately criticized by City Council Speaker Adrienne Adams — a Democrat who is also running for mayor — who questioned the mayor’s motivations.

“This executive order is deeply concerning, particularly given Judge [Dale] Ho’s recent ruling on Mayor Adams’ corruption case, the attempted quid pro quo, and the series of highly troubling recent events between the Trump administration and our city’s mayor,” Speaker Adams said in a statement. “It is hard not to see this action as connected to the dismissal of the mayor’s case and his willingness to cooperate with Trump’s extreme deportation agenda.”

Last week, Judge Ho dismissed Adams' federal corruption case, a decision that followed a Justice Department request in February to drop the charges so the mayor could assist with President Donald Trump's immigration crackdown.

Speaker Adams also noted that local law prohibits using city resources for civil immigration enforcement and said the Council is reviewing the order and prepared to act.