Bwana Sinkamba avuga ko ibi byaba umugisha cyangwa umuvumo "kimwe na diyama cyangwa zahabu, bitewe n'uko ubutegetsi bubikoze." Urumogi mu bihugu byinshi rufatwa nk'ikiyobyabwenge, bityo kitemewe n'amategeko, mu bindi bimwe nka Canada, Uruguay, South Africa na Georgia rukoreshwa n'ubishaka, ibindi byemera kurukoresha abarwandikiwe na muganga.
