How one Minnesota tribe is trying to prevent its own ‘mathematical genocide’ Natasha Rausch, Forum News Service · December 9, 2019 at 8:17 pm The Red Lake Band of Chippewa in Minnesota is aiming to increase its enrollment, even as some members want to stick to the status quo. This fall, the Red Lake Tribal Council approved a resolution loosening its rules on blood quantum, a system that identifies Native Americans by their percentage of ancestry in a tribe. Now, the tribe has hundreds of new citizenship applications under consideration as it seeks to avoid what Tribal Secretary Sam Strong described as “mathematical genocide.” Other tribes across the country are also looking into ways to approach the blood quantum system to avert dwindling enrollment. According to the blood quantum system, a “full-blooded” Native American of a certain tribe, who marries a non-Native, would have “half-blooded” children. A “half-blooded” person who marries a non-Native, would have children with quarter-blood. And so on.