From Epoch Times:

At least 20 FBI and Bureau of Alcohol, Tobacco, Firearms, and Explosives “assets” were embedded around the U.S. Capitol on Jan. 6, 2021, a defense attorney claimed in a court filing on April 12.

The allegation was made in a motion seeking to dismiss seditious conspiracy and obstruction charges against 10 Oath Keepers defendants in one of the most prominent Jan. 6 criminal cases.