Might be happening
Well, always look at what your thinking the crime may be. The bigger the conviction, the more sneeky you have to be. Remember unless they are a really good person or liar...be careful. Don't trust anyone but yourself because, I take it your the one that is calling the shots.
Proving the findings
Well, always make sure that when getting things proven that you have done your lawful best for your proof the be correct. After you are sure guilty or innocent (only you should know) go straight to your local department (police or sheriff) with the evidence...remember prove prove prove. Don't feel stupid it your right to feel safe in your home and with your family. If you can not get there make sure you find someone you trust and knows. Remember Sneeky
Well when the authorities know of your worries....just sit back and relax.