Hardened military grade devices are a different matter, but most "Consumer grade" stuff that people will be getting up to no good with (or for that matter a lot of off the shelf stuff that LE uses), are not well shielded and not error resistant.
The energy budget needed for a decent laser is a fair bit for actual destruction and then for taking out a camera with a small laser, you do need to get a fairly straight on direct shot at the camera sensor.
For much less energy, a small RF / Microwave generator with a small parabolic dish can put out a big enough pulse of RF energy to make most of the processor control circuits in the drones error out and have to reset, which usually means crash by the time the full boot loop is done and the sensors are up and working again. In addition the radio/GPS reception circuits and transmit circuits are likely to get fried.
You can have the dish disguised and drop the drone a fair ways away from you if you wish.
