(Reuters) – The Canadian Supreme Court ruled on Thursday that Quebec's provincial ban on cannabis grown in private homes is constitutional, in a blow to cannabis advocates who said it was at odds with a federal law allowing a small number of plants to …

The ban was first challenged by Janick Murray-Hall in 2019. He won in Quebecs Supreme Court, but that ruling was overturned by the provinces court of appeals, bringing it to the Supreme Court of Cana…