Benefit fraud is committed by either:
If you think someone is committing benefit fraud you can report it online to the Department for Work and Pensions.
If you think that someone is committing fraud relating to other matters, including Local Council Tax support:
Below is further guidance, as taken from the website of Department for Work and Pensions (DWP)
You’ll be contacted by the Department for Work and Pensions, HM Revenue and Customs, the Service and Personnel and Veterans Agency or your local authority if you’re suspected of fraud.
You may be visited by Fraud Investigation Officers (FIOs) or asked to attend an interview to talk about your claim.
Your benefit may be stopped while you’re investigated. You’ll get a letter telling you about this if it happens.
FIOs will gather facts about your case and decide whether to take further action.
If there’s evidence you’ve committed fraud, you’ll be told to pay back the overpaid money. One or more of the following may also happen: