Michael Grayshott

Christopher Cordess’s criticism of the definition of ‘diminished responsibility’ (the partial defence to murder) in the Homicide Act 1957 – in particular, its use of the pseudo-medical term ‘abnormality of mind’ – is well taken (Letters, 9 January). He does however give me too much credit in claiming that I have inadvertently coined a workable alternative. My reference to ‘abnormality...