Might be looking to make sure no one's messing with your house. I had that happen last fall. I'm outside in my back yard in the middle of the night letting the dog out, and a state trooper comes around the corner and asked me what I was doing. I live pretty far off the road, but I use a Maglite when i take the dog out. He had been patrolling the neighborhood and saw a flashlight beam so he was just investigating. Needless to say, I feel pretty good about that happening. We do have a security alarm on the house, but it is nice to know that someone is paying attention.