both the complexity and centrality of prevention in any discussion of a comprehensive Four Pillar approach to harmful drug use." A Four Pillar Approach to Drug Problems that was founded by Donald Macpherson consists of the equal involvement of facilities that deal with Prevention, Treatment, Enforcement and Harm Reduction strategies in a commonly shared goal to manage the negative impacts of severe drug use and dependence on the community and the individual. Marc Emery extradition and trial (2005–2009) Marc Emery, a cannabis activist and former cannabis seed distributor from Vancouver, was extradited to the United States, where he was sentenced to 5 years in prison for "distribution of marijuana" seeds. Though accused of laundering seed money from 1998 until his arrest in 2005, Emery paid provincial and federal taxes as a "marijuana seed vendor" totalling nearly $600,000. Anti-drug strategy (2007) In October 2007, while in his first term in office, Prime Minister Stephen Harper announced a new national anti-drug strategy. Following the Conservative victory in the 2008 election, the government reannounced the policy in February 2009. The proposed legislation would have dealers facing one-year mandatory prison sentences if they are operating for organized crime purposes, or if violence is involved. Dealers would also face a two-year mandatory jail sentence if they are selling to youth, or dealing drugs near a school or an area normally frequented by youth. Additionally, people in Canada who run a large cannabis grow operation of at least 500 plants would risk facing a mandatory two-year jail term. Maximum penalties for producing cannabis would increase from 7 to 14 years. Bill C-15/S-10: mandatory minimums for cannabis (2009) Legislation submitted by the Conservative minority government moved in a new direction on cannabis towards increasing penalties on cannabis trafficking by introducing mandatory minimum sentencing. The Senate sent the bill back to the house. Parliament was prorogued at the end of 2009 so the bill died, but it was reintroduced as Bill S-10. Bill S-10 did not become law, in March 2011 as parliament was dissolved after a non-confidence vote. Legalization (2017–2018) On 13 April 2017, a bill to legalize cannabis by 1 July 2018 was introduced to Parliament. It would allow for national use by individuals 18 and over, and possession of 30 grams. Provinces could further restrict possession, sale and use. Provisions were not made for legal sales. Final legalization On 1 June 2018, the Canadian Senate