A TOP public school has suspended 21 pupils following an investigation into cannabis use, it emerged today. Ampleforth College, whose former pupils include the late Archbishop of Westminster Cardinal Hume and which aims to give pupils a Roman Catholic education, sent the boys home last week after drug use at the boarding school came to light. The ?20,000-a-year school, set in picturesque countryside in North Yorkshire, will offer counselling and carry out random testing on pupils once the suspension period is served. [continues 212 words]