Reports, correspondence and statements relating to the forensic evidence and the Greiss test. Includes Hugh Blacks' affidavit, Parliamentary Questions (Bob Clay, Joan Maynard and Richard Shepherd), Dr Skuse's 'Procedure for Sampling and Testing', 'An Investigation into Some Forensic Aspects of the Birmingham Public House Bombings' by the Home Office Forensic Science Laboratory and the select committee on science and technology's report on Forensic Science. Also correspondence and reports from Dr Brian Caddy of the University of Strathclyde

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