I spent eight years working Loss Prevention at a retail store, and I cant tell you this, the companies would rather lose a $50 dollar piece of merchandise than thousands in law suits that will arise because of a stupid move like this. This is one of the reasons security like this is going the way of the dinosaur, there are other preventitive measures one can take and are much less costly than some bonehead with a fake deputy badge trying to be a hard a**ss.
"The hero and the coward both feel the same thing, but the hero projects his fear onto his opponent while the coward runs. 'Fear'. It's the same thing, but it's what you do with it that matters". -Cus D'Amato