HC Deb 25 March 1971 vol 814 c191W
Dame Patricia Hornsby-Smith

asked the Secretary of State for Education and Science if she will draw to the attention of local education authorities the evidence of the danger to health of drug taking revealed by the recent report into the effects of cannabis sponsored by the Medical Research Council.

Mrs. Thatcher

I understand that work so far has been of a preliminary nature, and that further investigation is necessary before conclusions applicable to human beings can be drawn.