I was recently caught up in a very good friend's divorce, who suspected either her apartment or her car had been placed under surveillance (her husband constant

I was recently caught up in a very good friend's divorce, who suspected either her apartment or her car had been placed under surveillance (her husband constantly had knowledge of her whereabouts). For some reason I cannot expand here, she assumed I could help her "check" her apartment. This brought me into looking for solutions on how to detect electronic surveillance. I discovered the term "bugsweep", and rapidly came to the conclusion that I could either: 1) Recommend her to hire government contractors at a price she would never be able to afford. 2) Buy cheap stuff on Amazon without any knowledge whatsoever on what works or not. It felt like there was no middle ground. I also happen to stay in hotels for both work and while on holidays, and although I don't particularly aim to hide myself from government surveillance, I don't like the idea that any moron or stalker could buy some recording equipment online and put me under surveillance. I would appreciate being able to check my surroundings for obvious / cheap recording equipment when I feel the need. If anyone has some good pointers/recommendations on this topic, I think it could interest more than just me.