US Customs and Border Patrol learning GST (West Virginia, 2017) Police Officer gets arm-barred by drugged MMA-trained suspect in Canada. For reasons explained in this video, GST is now open to all active-duty EMTs, Firefighters and first responders. Bad guys are learning too. The Medical Safety of Gracie Survival Tactics for use by Law Enforcement professionals "It has often been taught that using a strike as a distraction technique can be a way of gaining compliance with a