Cannabis should be legalised in the UK, according to a report that has the backing of several cross-party MPs including the former deputy prime minister Nick Clegg. Current cannabis policy in Britain is a "messy patchwork" of legislation intermittently enforced by regional police and an embarrassment, says the report by the free-market thinktank the Adam Smith Institute. The government must recognise that legalising the Class B drug is the "only workable solution to the problems of crime and addiction in the UK and modernise and legalise", the report says. (See also: Cannabis legalisation 'could raise £1bn a year for UK')