Regina v Williams (Dean Arthur): [2013] WLR (D) 497
‘For the purposes of establishing the defence of diminished responsibility, the concept of mental responsibility, within section 2(1) of the Homicide Act 1957, described the extent to which a person’s acts were the choice of a free and rational mind.’
WLR Daily, 13th December 2013
Source: www.iclr.co.uk