Undercover: Nailing the Fraudsters - Episode Guide

Paul Connolly delves into the world of fraud. Paul investigates scams involved with transport and travel, from gangs who cause crashes to claim for injuries, to fare dodgers who are part of a problem that costs the nation hundreds of millions of pounds a year.

Paul Connolly delves into the world of fraud. Paul and his team go undercover to expose the illegal unprescribed drugs trade. They find fake Valium that is much stronger than the recommended guidelines, and counterfeit cancer medication that could kill. Paul also visits the government's contraband drug warehouse.

Paul Connolly delves into the world of fraud. The team goes undercover to expose the growing problem of dodgy landlords committing benefit fraud. It is costing the UK a fortune, as these fraudsters earn cash renting out rooms and failing to declare it to the benefits office.

Paul Connolly delves into the world of fraud, exposing fake death certificates that are obtained to cash in lucrative life insurance policies, as well as a case in which a man pretended to be in a coma to avoid conviction.

Phishing is when fraudsters pretend to be your bank, mobile phone provider or even the police, to get you to hand over your personal details - then they empty you out. Paul reveals a gang who stole £113m over three years, and tracks down one criminal who 'earns' £100k a week.

Boiler room scams involve cold callers selling unmissable investment opportunities in everything from wine and property to stocks and shares, which don't exist. Paul tracks down a gang who stole 200 people's savings and a former boiler room conman to reveal the secrets of the scams.

Paul Connolly exposes the pitfalls of some dating sites.

Investigative reporter Paul Connolly exposes criminal scams. Forged documents are big business, from fake P45s and passports to bank statements and even gun licenses. Paul tracks down a forger able to doctor documents in a matter of minutes.

Investigative reporter Paul Connolly exposes criminal scams. Fake slimming drugs are at the heart of a multi-million pound business, but Paul reveals that the pills being sold are often illegal, unlicensed and dangerous.

Ghost brokers target high premium drivers with discounted insurance products that do not in fact exist. This multi-million pound fraud leaves its victims uninsured and potentially liable for huge costs in the event of a crash.