When searching rooms in a darkened building alone, here is a simple and effective way to keep yourself safer. As you approach each room, tap the light of your flashlight on and off instead of keeping it on for a continuous flood of light. This serves two purposes. First, it can make it appear as though there are multiple officers approaching. Second, if there is a suspect inside, he cannot easily predict where you are standing. This “popping” of the light still allows you to see what is in the room.