The power comes from the people
It is most likely because he believed that they could cause unnecessary conflict... that is just my educated guess
Then, in 1873 the Métis of St. Laurent updated and formalized the laws of the prairie into a written document, known as the Laws of St. Laurent. These laws covered all aspects of Métis life in the district, not just the conduct of people engaged in the hunt.
the answer is Simon de Montfort