|A group photograph at a nucleic acid meeting in the United States (c.1955) with Wilkins standing on the left hand front row.|
The investigation seems fairly low-key on the whole as the MI5 did not want to alert Maurice Wilkins of their activities. Instead, they began monitoring his movements and communications. The bulk of the documentation in the files are collected copies of received post, e.g. letters to estate agents, passport renewals and bank statements and letters from his family. The authorities did however approach Sir Harold Himsworth, the Secretary of the Medical Research Council, for an assessment of Wilkins and were provided with a written report on him by an anonymous informant who was at contact with him at King's. A previous report from an MI5 informant who met him at Birmingham before the war, described him as a "very queer fish" but whose associations were broadly left wing socialist rather than communist. The latter report described how his politics had mellowed and he now "come into College every morning with a copy of the Times, which he had apparently read on the journey". It goes on to describe him as a "caricature of a scientist" but "who recognises his own failings and tries to get over the difficulty with consultations with psychoanalysts".
In an earlier draft section of Maurice Wilkins's autobiography discussed the Nunn May and Klaus Fuchs espionage cases. He points out that although having never met Nunn May their paths had crossed- both had been educated in Birmingham; studied Physics at Cambridge University and during the war he was invited, as a war worker, to stay at the Nunn May residence, south of Birmingham to avoid the heavy bombing. Wilkins sympathised with Nunn May as he "like other high principled and independently minded young men I knew, he would have been indignant with Churchill for not keeping his promise and for having concealed from the Russian the very existence of the Atom Bomb Project". Yet the most interesting passage is Maurice reflecting on his own prospects as a spy: