During the reading of the verdict on Friday, the court announced that Mbarushimana is convicted of complicity in genocide, conspiracy to commit genocide and extermination as the crime against humanity.
He committed crimes in former Muganza Commune in Butare Prefecture, currently in the Southern Province.
He is accused of instigating the establishment of two road blocks in the area where many people were killed. He is also said to have been among the leaders of the attack on Kabuye Hill where thousands of Tutsi were killed between April 21 and 25, 1994.
Mbarushimana, who was in the court as the presiding judge read the judgment, announced that he was going to appeal the decision.
Mbarushimana was extradited from Denmark in July 2014 after exhausting all avenues to block extradition efforts including petitioning the European Court of Human and Peoples’ Rights which ruled that there were all conditions necessary for him to get fair trial in Rwanda once extradited.