Former Hai District Commissioner Lengai Ole Sabaya and three others will spend the next 30 years in prison after pleading guilty to armed robbery.
Arusha Resident Magistrate Odira Amworo said on Friday that he was satisfied with the charges against former Hai DC and his co-defendants.
During mitigation, the prosecution asked the court has sentenced them to a minimum of 30 years in prison.
However, the ruling was earlier postponed on October 1, because the Senior Resident Magistrate, Odira Amworo had not completed writing the verdict.
The trio completed their defense on August 24, this year after prosecution had presented 11 witnesses and eight exhibits.
Sabaya and co-accused were first arraigned on June 4, after they were arrested on May 27, in Kinondoni District, Dar es Salaam.
The defendants were represented by lawyers, Dancan Oola, Mosses Mahuna, Sylivester Kahundika, Fridolini Gwemelo and Jeston Justin.
Prosecution was represented by the state attorney, Tumaini Kweka, Senior state attorney Abdallah Chavula and state attorney, Baraka Mgaya