FBI Director Kash Patel is making bureau staff take polygraph tests to root out anyone who’s been talking trash about him, according to a report. Patel has ramped up the FBI’s use of the lie-detector tests—often deemed too unreliable to use as evidence in criminal courts—in order to keep tabs on his own people and stamp out leaks.

The FBI offered a $50,000 reward for a person who appeared to point and fire a weapon at federal law enforcement officers in Southern California on Thursday.

The FBI is offering a $50,000 reward in the search for someone who appeared to fire a pistol at federal immigration agents during protests Thursday near Los Angeles, the U.S. attorney for the region said.