Tobacco firm Imperial Brands is investing in UK biotech company Oxford Cannabinoid Technologies (OCT). The move comes as campaigning to allow marijuana products for medicinal purposes gathers pace. A company subsidiary, Imperial Brands Ventures, is taking a stake in the UK firm, but its size is unknown. Tobacco companies are trying to diversify away from their core product. Imperial's website bears the motto: "From tobacco to something better." Imperial now sees itself as "a dynamic fast-moving consumer goods company borne out of a strong tobacco heritage".