http://www.independent.co.uk/news/uk/home-news/legalising-and-taxing-cannabis-could-help-cut-the-deficit-by-125bn-claims-study-8817710.html http://www.theguardian.com/politics/2013/sep/15/beckley-park-thinktank-legalise-cannabis
''The study estimates that a lower cost of policing, criminal justice and drug treatment could save the country £200-300 million.'' We would be able to invest the money in a poorly funded Public service