police officers flash their lights at each others body cam's when they want to go invisible. Seal up your room and set like 5 strobing high lumen flashlights and place them in the general direction (basically every wall above eye level most common place and ceiling for hidden cams.) and blast the fucking hidden cameras. There is also some kind of led lights that people who shoplift use because it fucks up some of the outdated cctv footage around their face if stuck on a ball cap. Now with the possibilities of robotic fly's and high def infared shit. That would suck. But the flashlight thing is solid if aimed right and placed right.