Sen. Rand Paul has officially sent a criminal referral to Attorney General Merrick Garland, requesting the Department of Justice to open an investigation into whether President Joe Biden’s chief infectious disease advisor Dr. Anthony Fauci lied to Congress in a Senate testimony.

In a letter obtained by Washington Examiner, Paul alleged that Fauci could violate a U.S. code for making a false statement when the director of the National Institute of Allergy and Infectious Diseases (NIAID) said at the testimony that the institute had never funded gain-of-function research at the Wuhan lab.

“I write to urge the United States Department of Justice to open an investigation into testimony made to the United States Senate Committee on Health, Education, Labor and Pensions by Dr. Anthony Fauci, Director of the National Institute of Allergy and Infectious Diseases (NIAID) on May 11th, 2021,” Paul wrote.

“As one of the institutes that compose the National Institutes of Health, NIAID funds many scientific projects both in the U.S. and elsewhere. In response to questioning by me, Dr. Fauci testified that ‘The NIH has not ever and does not now fund gain-of-function research in the Wuhan Institute of Virology,’” the senator added.

Paul pointed to a paper on Dr. Zheng-Li Shi’s experiments at the Wuhan lab, which cited an NIAID award, included research “in which the spike genes from two uncharacterized bat SARS-related coronavirus strains, Rs4231 and Rs7327, were combined with the genomic backbone of another SARS-related coronavirus to create novel chimeric SARS-related viruses” and that “these experiments combined genetic information from different SARS–related coronaviruses and combined them to create novel, artificial viruses able to infect human cells.”

The senator from Kentucky said that “This research, conducted at the Wuhan Institute of Virology and funded under NIAID Award R01AI110964, fits the definition of gain-of-function research.”

The lawmaker alleged that Fauci had potentially violated 18 U.S. Code § 1001, which states “whoever ‘makes any materially false, fictitious, or fraudulent statement or representation’ as part of ‘any investigation or review, conducted pursuant to the authority of any committee, subcommittee, commission or office of the Congress, consistent with applicable rules of the House or Senate’ is subject to criminal fines and imprisonment of up to five years.”

“I ask that you investigate whether Dr. Fauci’s statements to Congress on May 11, 2021 violated that statute or any other,” the Republican senator told the attorney general.

With the letter, Paul has realized his threat after telling Fox News last Tuesday, July 20, that he would seek a criminal referral from DOJ over Fauci’s testimony.