An Illinois law that sets guidelines for how police use body cameras and establishes new training and reporting requirements for law enforcement took effect in January. These statutory changes do not require the use of body cameras, but they do establish new statewide protocols. For example, the devices must be turned on at all times when an officer responds to a call or is engaged in other law enforcement activities. (Crime victims or witnesses can ask that the cameras be turned off.) New rules on the disclosure and retention of the cameras’ recordings are also now in place.