Britain signs the Geneva opium convention, which brings Indian hemp under control

The Second Geneva Opium Convention, signed on 19 February 1925, was the first international treaty to require controls on Indian hemp, its resin and extracts. Britain signed for the British Empire, which then included Malaya, and the treaty obliged parties to regulate imports and block exports to countries that banned them. It created no domestic cannabis offence; Malaya's own ganja bans were enforced under state enactments.^[1]