It's doesn't seem to be necessary. If they have just 200 violent incidents then that's impressively low, 0.0125% chance of you as a Walmart employee to have a v

It's doesn't seem to be necessary. If they have just 200 violent incidents then that's impressively low, 0.0125% chance of you as a Walmart employee to have a violent encounter at work per year. Verbal conflicts can be unpleasant as well obviously, and the cameras can help identify those customers as well. I'm not entirely sure that the cameras well work as a deterrent though, they normal don't in other cases. A frustrated or angry customer isn't going to see the camera an change their behavior. So you still need to have support framework in place for the employees who have these encounters. The cameras are only there to be able to identify customers, but I'm not really sure what they would want to do with that information.