HC Deb 06 April 1954 vol 526 c14W
66. Mr. Lewis

asked the President of the Board of Trade whether, in view of the harmful effect of thiourea on citrus fruits, he will prohibit the importation of these fruits when treated with this particular preservative.

Mr. Amory

I am informed that the import of citrus fruits containing thiourea is already prohibited under the Preservatives in Food Regulations and anyone doing so is liable to be prosecuted.