Bull.
You can’t just freelance, it’ll be chaos.
So responding to a call of "active shooter" with the guys you where training with is "free lancing".
Congratulations.
That is the dumbest thing I have heard today.
But the day is young.
When was out ever okay to respond without calling in simultaneously at least. Not doing so is a way to get ambushed, set-up, or disappear with no back-up underway.
Usually happens to rookies and cowboy cops.
That is a heavy duty example of police thinking of the “east coast” philosophy.
When you don’t work for that agency, you better damn well let someone in your agency know you are rolling. I didn’t say they were freelancing, I said that you just can’t have neighboring agencies respond to each other’s calls, without letting their commands know they are going.