Grand Council Treaty 3 is identifying the victim in Monday's shooting incident in Kenora.
Treaty 3 says 39-year-old Helen Proulx of Grassy Narrows was shot twice by an officer.
OPP have said the officer was responding to a domestic dispute and was confronted by a woman wielding a knife.
Aboriginal leaders question the use of what they call excessive force, and say there have been poor relations between First Nations people and police in Kenora.
Grand Chief Diane Kelly says they want the Special Investigation Unit to conduct a transparent and procedurally fair investigation of the incident.
Meantime, a candlelight vigil is planned for tonight in Kenora.