An FBI intelligence analyst admitted to House committees last week that bureau officials were known to leak information to the press and then use the resulting articles to help obtain surveillance warrants, according to a source with knowledge of his testimony.

Jonathan Moffa, who worked with controversial former FBI officials Peter Strzok and Lisa Page, testified last Friday behind closed doors before the House Judiciary Committee and House Oversight Committee.

The source with knowledge of his statements confirmed to Fox News that Moffa said FBI personnel would use media reports based on information they leaked to justify applications for Foreign Intelligence Surveillance Act warrants.

The source told Fox News that Moffa acknowledged this “had been a practice in the past.”

Republicans have long questioned to what extent leaked information, related to the unverified anti-Trump dossier, was used as a basis for surveillance warrants against former Trump adviser Carter Page in 2016 — when the bureau was led by James Comey and deputy Andrew McCabe.

The source told Fox News that Moffa did not specifically confirm the practice of using leaked information to bolster warrant applications was employed with regard to the dossier.

But, when pressed by the committees on whether this was common practice at the FBI, Moffa acknowledged the FBI had at least engaged in this activity in other cases.

The FBI did not immediately respond to Fox News’ request for comment.

House Freedom Caucus Chairman Mark Meadows, R-N.C., told Fox News on Tuesday that the committee had evidence of the FBI’s practice that would be “hard to refute.”

“We know that some people at the Department of Justice and the FBI actually gave information to the media, then the stories were reported. Then they used those reports to justify further investigations,” Meadows said on “America’s Newsroom” Tuesday. “You know, that’s like saying, we’re going to incriminate on one hand, and be the jury on the other. It just doesn’t work that way.”

Meadows had tweeted late Monday night in reference to the Moffa statements, without naming him: “We’ve learned NEW information suggesting our suspicions are true: FBI/DOJ have previously leaked info to the press, and then used those same press stories as a separate source to justify FISA’s.”

The Daily Caller first reported on the specifics of Moffa’s claims.

The Trump dossier, which contained salacious allegations about the then-presidential candidate, was compiled by ex-British spy Christopher Steele. Steele, who was also working as an FBI source, had been hired by research firm Fusion GPS to compile details for the dossier, which was funded by the Clinton campaign and Democratic National Committee. 

The source familiar with Moffa’s testimony told Fox News that his statements raise concerns that the bureau indeed used this practice with the dossier, referencing an article written by Yahoo! News’ Michael Isikoff.

The Isikoff article was published on Sept. 23, 2016, focusing on Page’s July 2016 trip to Moscow. According to a House GOP memo earlier this year, the Isikoff article did “not corroborate the Steele dossier” as the article was “derived from information leaked by Steele himself to Yahoo News.” Yet the subsequent FISA application to spy on Page cited the Isikoff article, among other pieces of evidence.

“The [Carter] Page FISA application incorrectly assesses that Steele did not properly provide information to Yahoo News,” the memo read. “Steele has admitted in British court filings that he met with Yahoo News—and several other outlets—in September 2016 at the direction of Fusion GPS.”

Moffa served on the FBI’s “Mid-Year Exam,” the code name for the bureau’s investigation into Hillary Clinton’s handling of classified information and use of a private email server while secretary of state.

Moffa’s name often appeared in text message conversations between former FBI officials Strzok and Page, who came under scrutiny for their anti-Trump and politically charged exchanges. One text message exchange between the two on July 24, 2016 discussed their need to read “Moffa’s thing,” referencing an FBI “302”—which is an interview or witness deposition in an FBI investigation.

DOCUMENTS SUGGEST POSSIBLE COORDINATION BETWEEN CIA, FBI, OBAMA WH AND DEM OFFICIALS EARLY IN TRUMP-RUSSIA PROBE: INVESTIGATORS 

Another reference was on Aug. 8, 2016.

“Hey no update yet, waiting on Moffa, he’s in with Dina at mtg scheduled to end at 11,” Strzok texted Page. An hour later, he added: “Hey, talked to him, will let him fill you in. Internal joint cyber cd Intel piece for D, scenesetter for McDonough brief, Trainor [head of FBI cyber division] directed all cyber info be pulled. I’d let Bill and Jim hammer it out first, though it would be best for D to have it before the Wed WH session.”

In the texts, “D” referred to former FBI Director James Comey, and “McDonough” ref