Irish drug baron and gangster George “The Penguin” Mitchell is arrested in Amsterdam on March 5, 1998, after a joint operation between Irish and Dutch police in which he is caught stealing five million pounds worth of computer parts.

Originally from Drimnagh, Dublin, Mitchell has an older brother Patrick, who dies in January 2020. He is a cousin of Gay Mitchell and Jim Mitchell.

Mitchell starts as a driver for Jacob’s but gets involved in robberies with associates of Martin Cahill.

In 1988, Mitchell is convicted of stealing a large amount of cattle drench and is jailed for five years. While in prison he becomes interested in the illegal drug trade and within a few years of his release he is the largest supplier of illicit drugs in the country.

In the 1990s Mitchell is arrested in Luton, Bedfordshire, England, by British police while in the possession of £575,000, a downpayment for drugs. The money is seized but he is released. In 1995, the Garda drug squad raids a house in Lucan, Dublin, and discovers an ecstasy processing plant believed to have been set up by Mitchell. In 1996, his associate, Johnny Doran, is caught with £500,000 worth of cannabis at M50 at Castleknock, Dublin. His gunman, Michael Boyle, is caught after a botched murder attempt in London, leaving him feeling vulnerable. Concerned that the Gardaí are focusing on him, he moves the centre of his operations to Amsterdam. Rumors surface that he had fled the country after being placed on an Irish Republican Army (IRA) death list, though this claim is later refuted.

Mitchell is arrested by Dutch police on March 5, 1998, after £5 million worth of computer equipment originating from Hewlett Packard in Kildare, County Kildare, is stolen from a lorry near Schiphol Airport. He is later sentenced to 30 months in prison after Dutch authorities rule he is the ringleader in the robbery. He claims in court that he is the victim of a “set up” by Irish police, who had tipped off Dutch authorities about the robbery, after he had refused to become an informant.

In 2015, Mitchell approaches Herman-Johan Xennt about setting up an encrypted phone business. He has known Xennt since at least 1998, when he was arrested for handling the stolen computer parts. Xennt had been accused of buying stolen computer parts from Mitchell. It is also claimed during a 2020 German court case that Mitchell loaned Xennt the equivalent of €700,000 in 1995 to buy a 20,000-square-foot former NATO bunker on the outskirts of the southern Netherlands town of Kloetinge, which was then used to host the CyberBunker Internet service provider (ISP).

Mitchell has had links with the gangs led by Christy Kinahan and Gerry Hutch but after the Regency Hotel attack he makes it clear to the Kinahan gang that he does not want to be dragged into their feud.

In February 2023, German police announce that Mitchell is one of five major suspects behind the Exclu network.