“”””What is this crap is this of “I grabbed by assault rifle” said no policeman ever.”””””
He just wanted to clarify that he did not use his semi automatic hunting rifle instead.
In L.E.O. community they are normally referred to as “Patrol Rifles” Most commonly an AR variant, usually semi-auto, but could be oddballs like an SKS (usually a budgetary choice)or an M1 Carbine. Is occasionally an AK type.