For those interested, David Allen Green, Barrister and Legal commentator of the New Statesman, has produced an excellent analysis of Turings case and how tragic it all is.
In it, he argues that a pardon is anyway meaningless, that it does nothing for the 1000s of men convicted under Section 11 as was, and is therefore just "gesture politics".
He also argues that a much better solution would be for those convicted under this law, as with Alan Turing, should be able to apply to have their case removed entirely - but individuals or their families would have to apply individually, since there may have been other circumstances to take into account....
Very interesting article
http://www.newstatesman.com/david-allen-green/2013/07/putting-right-wrong-done-alan-turing