HC Deb 27 November 1978 vol 959 cc76-7W
Mr. Raphael Tuck

asked the Secretary of State for Industry if he will give deails of the process by which the presence of sperm oil in leathers is detected.

Mr. Les Huckfield:

The presence of sperm oil is detected by chemical analysis which I understand is based on the application of gas liquid chromatography using generally established techniques.