Gavin de Becker is a three-time US presidential appointee whose pioneering work has changed the way the US government evaluates threats to its highest officials. His firm advises many of the world's most prominent media figures, corporations and law enforcement agencies on predicting violence, and it also serves regular citizens who are victims of domestic abuse and stalking. De Becker has advised the prosecution on major cases, including the O.J. Simpson murder trial. He has testified before many legislative bodies and has successfully proposed new laws to help manage violence.