The incident involving Border Patrol Commander Greg Bovino, has been a key part of the court proceedings challenging immigration tactics in Chicago.

A federal judge said U.S. Border Patrol Commander Gregory Bovino lied in a sworn deposition about the use of force during Operation Midway Blitz. The judge says a key claim he’s made is disproven by video evidence.

Top Border Patrol chief Gregory Bovino, who oversees the Trump administration’s immigration crackdown in the Chicago area, came under the microscope of a federal judge Tuesday after she received reports federal agents were not following her order to limit aggressive tactics and warn protesters and journalists before using tear gas and less-lethal munitions.

Judge Sara L. Ellis said she saw “little reason for the use of force that the federal agents are currently using,” and said Gregory Bovino, a Border Patrol official, had lied about his use of tear gas in Chicago.

A new court filing in the case of the Chicago Headline Club versus the Department of Homeland Security alleges that Border Patrol agents tossed tear gas on a crowd “for fun” and