A prison volunteer also gave him a copy of a document titled “Warrior Society” that included a code of ethics that required Native Americans to serve the people, be honorable, kind, and not steal or be stingy. A prison guard searched his cell one day in 2005, and confiscated the AIM notes, along with the “Warrior Society” document. Both were classified as “written contraband.” Greybuffalo was written a disciplinary case and sentenced to 180 days in solitary confinement. The disciplinary charge was upheld in part by a federal district court in 2010.
Always worth reminding people that "solitary confinement" is recognized as a form of torture under international human rights law.
Not that the US has ever been opposed to torturing suspects or inmates as a form of punishment. But it bares repeating.
As Oliver detailed on “Ear Hustle,” the award-winning podcast created and produced from San Quentin State Prison, he came back to officers swarming his cell, which they had yellow-taped off like a real crime scene. Oliver was handcuffed and held in solitary confinement for the next eight years in California. His only offense was “possessing illegal contraband,” which also made him ineligible for new sentence under a 2012 California law easing life sentences on nonviolent “three strikes” convictions. (Oliver was finally freed in 2019 after serving 23 years.)