The ban imposed by Governor Darling in 1831 had several effects on the trade of Toi moko, which generally declined although it did not end immediately after the ban came into effect. The trade was driven underground, so that it could continue without the knowledge of officials and the government. The custom itself ceased in the later nineteenth century, and so Toi moko became much more difficult to obtain, although a small number were still being exchanged around the turn of the twentieth century, predominantly for auction houses, wealthy private collectors, and museums and galleries.