Retired LEO here who carried a Glock 17 as a duty weapon. They require 14 pounds of pressure on the trigger to fire the chambered round. She very likely put her finger inside the trigger guard (muscle memory?) when she grabbed the sidearm and yanked on it to unholster it. Gobsmackingly stupid of her.
That's the law enforcement version. A civilian Glock is less than half of that.
https://tacticaltriggers.com/trigger-configurations-and-pull-weights-for-glock-pistols/
“Retired LEO here who carried a Glock 17 as a duty weapon. They require 14 pounds of pressure on the trigger to fire the chambered round. She very likely put her finger inside the trigger guard (muscle memory?) when she grabbed the sidearm and yanked on it to unholster it. Gobsmackingly stupid of her.”
I don’t know of any inside the waistband holsters for semi-autos that DON’T fully cover the trigger. That means while she was removing the gun it was removed from the holster enough for her to get her finger on the trigger. Stupid indeed.