Hi all, I'm an ex army electrician that is now working on generators. I have a colleague who isn't a spark but he has carried out an electrical installation in his mates new restaurant! I've told him to get a proper spark in that knows what he is doing but he didn't. From what I know, there is NO RCD protection, no design work was carried out before hand and I'm unsure but confident no paper work has been submitted to anyone to carry out the work. He told me someone had been out to tell him what needed to be done but I think that's BS. Apparently this person told him a 6A CB would be suitable for a ring main circuit. What's worse is the restaurant is now open for business, he claims an electrician is coming in next week to sign it all off. I need advice on what to do, the last thing I want to do is keep my mouth shut and someone dies!