KEY POINTS:
A large majority of British voters do not care if Tory leader David Cameron smoked cannabis at school or university.
Cameron has not confirmed or denied reports in a new biography that he was disciplined for drug use while a pupil at Eton.
A Populus survey for the Times found that 81 per cent of those polled thought such drug use at school or university by politicians did not matter and 85 per cent thought MPs should not have to answer questions about such activity and were entitled to "have made mistakes when they were growing up".