A petition to pardon the war-time codebreaker for a 'gross indecency' conviction attracted more than 23,000 signatures, prompting the tabling of early day motion in the House of Commons last week.
Turing was arrested and eventually convicted for homosexuality in 1952. The conviction meant he was no longer allowed clearance to work on secret government projects. In addition he was forced to undergo a degrading hormone injection programme (chemical castration) as an alternative to a prison sentence. Turing spiralled into depression and ultimately took his own life two years later, in 1954.