Canada is set to become the largest country in the world to legalise marijuana for recreational use this week, following Uruguay’s lead last year.
A key campaign pledge by the country’s Liberal prime minister Justin Trudeau before his 2015 election, he argued that it would reduce the estimated C$6bn (£3.5bn) in profits from cannabis sales pouring into his country’s black market.
However, the law will vary in each of the country’s 10 provinces and three territories as each will be able to interpret the rules differently.