Sorry if this is in the wrong section. I know someone who does not pay tax and only deals cash in hand. Last week he was paid by a customer £12k in cash. He buys bulk products from a company and sells them in bulk to customers. The only reason I want to report him is because he has sexually assaulted me and I'm too scared to go to the police. I have asked him on many occasions to stop touching me and I've reached breaking point. He also claims benefits for his children. I know all details but I wonder if I should just let this go and hope karma gets him instead?