|Dr Victor Allen in disguise when he was arrested in 1964. Source: Times|
June 1964: Dr. V. L. Allen, British sociologist, historian, economist and Professor at the University of Leeds, whilst on a visit to Nigeria, was arrested and formally charged at the Lagos Chief Magistrate's Court under Section 63 of the Nigerian Criminal Code, with the offence of managing / assisting in the management of an unlawful society.
In 1999 the left-wing academic, was formally unmasked as a spy in the unfolding Cold War scandal, but denied acting illegally or betraying his country as he considered what he did was perfectly legitimate because he belonged to a pro-Soviet, pro-East German faction of the group.
He told BBC Two's The Spying Game: "I have no shame. I feel no regrets about that at all. My only regret is that we didn't succeed."
Dr Allen died on 26 October 2014, aged 91.
The Video is of scenes from outside a Lagos, Nigerian court.
He had also been accused of being involved in a coup that tried, but failed, to take over the Nigerian government.