Iran: special report

In 2008 Iran’s controversial leader delivered an alternative to the Queen’s Christmas Day message on Channel 4, telling British viewers it was time for “fundamental change” to preserve “human values”.

When 15 Royal Navy crew were captured by Iranian warships in 2007, Channel 4 News exclusively spoke to the country’s security chief Ali Larijani, who accused the UK of “violating” Iranian territory.

What next in Iran’s nuclear plan? President Ahmadinejad says “we don’t have to tell you everything”. Science Correspondent Julian Rush visits a civil nuclear power station on the Persian Gulf coast.

Iran has the largest heroin problem in the world. But when Foreign Correspondent Jonathan Miller and filmmaker Mehran Bozorgnia went to meet addicts, they found a progressive treatment programme.