In this episode of Head to Head, Mehdi Hasan challenges Norman Lamont, former British Chancellor of the Exchequer, or Finance Minister, and now Conservative peer in the House of Lords, on why he thinks the UK should leave the European Union.

Norman Lamont is a British Conservative politician backing Britain's pull-out from the EU in the June 23 membership referendum.

He served under two prime ministers, Margaret Thatcher and John Major, and as Chancellor of the Exchequer he presided over the withdrawal of the pound from the European Exchange Rate Mechanism in September 1992. He has been sitting in the House of Lords, the unelected upper house of the British parliament, as Lord Lamont of Lerwick since 1998.

As we approach this key vote amid a refugee crisis, an unravelling eurozone and Russia's challenge to European unity, we dissect with him the arguments for and against the so-called Brexit.

We explore the pros and cons for the economy, immigration and security, and the facts behind the assertion that the UK will be better off going it alone. We also discuss with him whether Britain's role in the world will be strengthened or weakened outside the European club, and ponder whether a victory for the leave camp will trigger the disintegration of the UK and the European project as we know them.

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