http://gu.com/p/3nmdy

Less-lethal weapons, also known as direct fired SIM, are not be used for crowd control in protests, according to an October 2013 OPD memo (pdf). “Direct Fired SIM may never be used indiscriminately against a crowd or group of persons even if some members of the crowd or group are violent or disruptive,” the memo states. However, these munitions may be used against “a specific individual.”