That's why I suggested a higher power rating than 1 watt, if you get a laser with a decent power output it won't take minutes, it will take seconds, the higher the output the faster the camera dies. If you get something fairly high power you could essentially take a camera out instantly, a quick flick on and off directly at the sensor with a beam that has a low consistent spread of maybe 1 cm per 100m or so with high output would fry the entire optical sensor at once, or alternatively a beam with high output and very small focus with minimal spread could simply slice through the camera entirely, focus it well enough and you could cut cameras off poles at their mounting points and wires at a distance and just walk away with the whole camera, some of the new ones have solar panels too which are actually useful and also incur more cost to replace while being useful for cutting down your electricity bill assuming you prevent them from breaking when they fall, in theory you could make back the money you spend on the laser that way too whether by using the panels or selling them. Though selling has its own risks.