I'm sorry, but your question is outside the scope of this forum. You need to understand the process, and you can find details on the government website www.gov.uk/benefit-fraud. If you follow the links on that page it will tell you how and where you can get legal help. You should also try and find yourself a specialist welfare advisor. You can do this here advicelocal.uk/ You also need to make sure you have copies of any relevant records.
BIS
Nothing on this board constitutes legal advice - always consult a professional about specific problems
