§ Miss Maynardasked the Secretary of State for the Home Department why his Department has discontinued the use of the Griess reagent in chemical forensic tests for the presence of nitroglycerine traces on hand swabs.
§ Miss Maynardasked the Secretary of State for the Home Department what are the reasons for the changes made in his Department'a guidelines on the experimental 325W and laboratory procedures to be followed in the collection and analysis of hand swabs from people suspected of having had contact with nitroglycerine since 1972.