The simple fact is that it's not law enforcement's job to protect anyone. This may upset some folks but that's the law. Some will do it if thrown into a situation as just happened in California but it ain't the norm. Their job is to clean up the mess after it's happened and it's too late. My Sheriff and his Lieutenant were out here at my shop many years ago and told me that if something bad happens, I'd best be able to tend to it myself. They would be happy to come and help clean up the mess afterwards.