Tear gas is a chemical weapon also known as "demonstration control agents" (DCAs). It's designed to disperse large crowds, typically in outdoor settings. Tear gas contains lachrymatory agents, ...

A visibly displeased federal judge on Tuesday ordered Border Patrol Cmdr. Gregory Bovino to start coming to court every day to detail any confrontations his immigration enforcement officers have had ...

Federal immigration officers are using chemical irritants to disperse protesters in ways that violate American policing norms and are testing the boundaries of use-of-force laws, video footage from ...

The repeated use of tear gas by federal immigration officers in Chicago has renewed a debate about how chemical irritants should be used by law enforcement personnel. By Mitch Smith Federal agents ...