ATF’s National Center for Explosives Training and Research hosts the annual Raven’s Challenge Interoperability Exercise as a national preparedness event that tests interagency partners’ response tactics used to detect and deter explosives/bombing threats.

The responding officers found Patrick Hancock, 42, wearing a badge emblazoned with the Drug Enforcement Administration's (DEA) Special Agent branding around his neck and a 9mm Glock pistol.