given the nature of the call did you not feel the need to wait for police to attend before you pulled up on scene. Did the crew intend on doing so , or as so often happens only did when they found out that you had pulled on scene and felt duty bound to do the same. I used to go into most things without the police. Until I went to a 25 y.o.m who had overdosed, who when we were in his flat decided to lock us in his living room and start to make threats to kill us (and mean it)