The police are not “the only ones qualified to handle guns”.
When one of the women involved in the brawl took off running across the street, the officer jumped out of his patrol car and pursued her on foot and approached the woman in the parking lot of a nearby business.
In the lot, the woman refused to show her hands and show she was not armed, prompting the officer to draw his firearm. While drawing his gun, the officer unintentionally fired one shot, striking the woman in the leg.
Keep your finger off the trigger until you are ready to shoot.
There have been many times I’ve had a gun go off unexpectedly but only when I was planning to shoot anyway. Your training should include drawing a gun without actually firing. And when you do plan to actually shoot you draw while keeping your finger off the trigger until the sights are on the target.