In this first episode of a new series, Roger Cook investigates the ivory trade from East Africa to carving in Dubai and markets in Hong Kong.

A close look at some of the reported incidents of satanic ritual abuse of children and adults in the UK and the US.

After the miners’ strike in 1984, there were accusations that Arthur Scargill had misappropriated National Union of Mineworkers funds and that money which should have gone to the striking miners had never reached them. The Cook Report investigated over two programmes. Witnesses said that, UK public donations aside, the funds had come from two sources – from Russian miners showing solidarity with their British brothers, and from the coffers of Colonel Gaddafi in Libya.

So-called "Friendly Fire" incidents; indeed this edition was later referred to by that title.

Investigating bullying in the army

The problem of cracking down on illegal pornography, especially child porn, has just got a whole lot tougher, as not only can perpetrators swap discs, but they can now also use the new bulletin boards to trade far more surreptitiously.

Kevin lost his life at Hillsborough, but his mum believes he could have been saved. She wrote to Roger Cook, and the result was one of the first documentaries to say that not everything was as it seemed that tragic day.

Another episode on the subject of the care system gone wrong, this time exposing how vulnerable children in care are groomed into prostitution.

Roger Cook looks back at cases from the last seven series of the show to see how his investigations have resulted in positive changes for individuals or even for the law as a whole.