HC Deb 27 March 1930 vol 237 c586
31. Mr. CECIL WILSON

asked the Home Secretary how many persons committed for trial in England and Wales during the 10 years prior to 1929 on the charge of murder have, before conviction or after conviction, respectively, been certified as mental defectives under the Mental Deficiency Acts?

Mr. CLYNES

I am afraid I am not in a position to give the figures asked for since cases of persons committed for trial certified mentally deficient and acquitted would not necessarily come to the knowledge of my Department, and as regards persons certified after conviction, the statistics do not distinguish between those serving commuted death sentences and other prisoners.