RT Journal Article SR Electronic T1 Anomalies of Section 2 of the Homicide Act 1957. JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 24 OP 27 DO 10.1136/jme.12.1.24 VO 12 IS 1 A1 A Kenny YR 1986 UL http://jme.bmj.com/content/12/1/24.abstract AB Section 2 of the 1957 Homicide Act is indefensible: the concept of 'mental responsibility' is a hybrid which turns the psychiatrist witness either into a thirteenth juryman or a spare barrister. But reform does not lie along the lines suggested by the Butler Committee or the Criminal Law Revision Committee. The latter leaves the jury with insufficient guidance; the former returns to the bad eighteenth century policy of treating mental illness not as a factor in determining responsibility but as a status exempting from responsibility. The much criticised McNaughton rules provide a sounder basis for deciding where responsibility should be assigned in criminal cases.