Warning shots should never be allowed. When firing a shot you shoot to kill because you are in fear for your life or others. Firing a shot should be intentional and deliberate. “Warning shots” can cause unforeseen damage
There are cases by cops and military for warning shots, and I do not think the book should be thrown at those doing it, but, yeah, they are a bad idea most of the time.
Besides, warning shots are a good way to get yourself in deep civil liability with anyone around.
I beg to differ - there are times when it becomes obvious someone is looking for an opening and a warning shot may change their mind and negate the need to kill them.