Forget about shamanism and trance. To the disappointment of many, the idea of two American Indian tribes to legalise marijuana on their reservations in Wisconsin has nothing to do with reviving ancient rituals.

The Flandreau Santee Sioux of South Dakota have already passed the same type of legislation. The tribe also owns a successful casino in the region.

Economic reasons are all that there is to the move. Anthony Reider, presdent of the tribes Menominee and Ho-Chunk, says: "We want it to be a playground for adults. There is nowhere in America that has something like this".

Consumers would be allowed to purchase 1 gram at a time, priced at $12.50 to $15. If all goes according to plan, the tribes would reel in an estimate of $2 million a month. A trance-inducing thought, for many.