Letter: Cannabis trials

Sir: In the 1960s, when I was in bed with flu, four of my sixth- form pupils arrived to ask how I was. They put four large, beautifully rolled joints on my bedside table and wished me well.

A day passed before I could face smoking anything, but when I did my depression eased at once, and in two days I was up. I shall always admire those boys for their daring altruism, and I am sure they are not nowadays marching their sons to the police station.

MAURICE HILL

Alicante, Spain