Britain is the most corrupt country in the world, according to journalist Roberto Saviano, who spent more than a decade exposing the criminal dealings of the Italian Mafia.

Mr Saviano, who wrote the best-selling exposés Gomorrah and ZeroZeroZero, made the comments at the Hay Literary Festival. The 36-year-old has been living under police protection since publishing revelations about members of the Camorra, a powerful Neapolitan branch of the mafia, in 2006.

He told an audience at Hay-on-Wye: “If I asked you what is the most corrupt place on Earth you might tell me well it’s Afghanistan, maybe Greece, Nigeria, the South of Italy and I will tell you it’s the UK.

“It’s not the bureaucracy, it’s not the police, it’s not the politics but what is corrupt is the financial capital. 90 per cent of the owners of capital in London have their headquarters offshore.

“Jersey and the Cayman’s are the access gates to criminal capital in Europe and the UK is the country that allows it. That is why it is important why it is so crucial for me to be here today and to talk to you because I want to tell you , this is about you, this is about your life, this is about your government.”

Prime minister David Cameron faced growing calls for the UK to reform the offshore tax havens operating on its own Crown Dependencies and Overseas Territories, as Britain hosted an Anti-Corruption Summit earlier this month.

Read more at The Independent.