The Navajo Nation Peacemaker Division has been expanded under Yazzie. In addition, Yazzie has acquired funds appropriated by the Navajo Nation Council for the peacemaking program. He has directed grassroots organizing and community education efforts to widen the participation of local leaders in the program. Peacemaking has proven to be quite successful in handling domestic violence, including juvenile delinquency, through funding from the United States Department of Justice, Office of Juvenile Justice and Delinquency Programs. In October 1992, the Navajo Nation Courts promulgated domestic violence court rules.
Rules are simple procedures, in criminal and civil proceedings, for victims to obtain relief.
They integrate Navajo common law and American common law concepts. The rules were developed through careful research of the extent of Navajo courts' powers under common law and equity. Yazzie has also created a sentencing commission, composed of Navajo Nation trial judges. The commission has established a sentencing plan which requires and presumes that in criminal cases the victim will receive relief under a Navajo common law principle and will also be made whole for his or her injuries. It also allows a judge to consider probation and parole officers' recommendation to avoid future injury to the victim.