Back in March, US President Barack Obama signed a law to better protect Native American women from men who are not members of Indian tribes.
According to the US Justice Department, non-Indian men commit 86 percent of the sexual assaults against Native American women.
In the past, if an assault took place on Native American territory, those men were immune from prosecution by tribal authorities.
To address the issue, Obama signed into law the Violence Against Women Act, to give Native Americans the right to prosecute non-Indians.
But some argue the new law allows some rapes and murders on Indian territory to still go unprosecuted.
Al Jazeera's Shihab Rattansi reports from the 70th annual Native American Convention in Tulsa, Oklahoma.