Amnesty International's report Maze of Injustice: Failing to Protect Indigenous Women from Sexual Violence in the United States focuses primarily on three regions that pose distinct jurisdictional challenges: Oklahoma, Alaska, the Standing Rock Sioux Reservation (North Dakota, and South Dakota). The report reveals that whatever the venue or legal framework, the result is the same: the denial of justice for many indigenous women who have suffered sexual violence. Amnesty International's report, 'Maze of Injustice: Failing to Protect Indigenous Women from Sexual Violence in the US', warns that official figures, as disturbing as they are, seriously underestimate the problem because many women are too afraid of inaction to report their cases. According to an Oklahoma support worker, of the 77 sexual assault or domestic violence cases she was working on involving Native American women, only three victims reported their cases to the police. The US government has undermined the authority of tribal justice systems to respond to crimes of sexual violence by consistently failing to provide them with sufficient funding. Federal law limits the sentence tribal courts can impose for each offense to one year's imprisonment and prohibits tribal courts from trying non-Indian suspects, even though data collected by the Justice Department indicates that at least 86 % of those responsible are non-indigenous men.