u/ness-xergling

Hi, my friend hired a PI to do a full sweep of his property for hidden cameras, as he has his reasons to believe his neighbours have set one up in each of his rooms. I won't go into that.....

The full sweep revealed nothing. My friend feels that his neighbours were switching off the devices just before each room was swept.

I know how this sounds, but also, how pheasible is it for someone to be able to remotely switch off a device and would doing so cause it to be undetectable by professional equipment? Thank you.