The Rwandan government set up an independent commission of inquiry into the Rwandan genocide. In November last year they submitted a 500-page report in which the government of France was accused of arming and training Hutu militia as well as stalling in the investigations that followed. This document has now been released to the public and France are yet to issue a formal reply.
In turn, in 2006 a French judge implicated President Paul Kagame in the shooting down of then-President Juvenal Habyarimana's planeon 6 April 1994. This event is widely considered to have sparked off the genocide.
In fact, nobody knows for sure who downed the plane and President Paul Kagame himself subscribes to the view that it may have been Hutu extremists who then blamed the event on Tutsi rebels (the Rwandan Patriotic Front). This view is used by proponents of the theory that the genocide was actually planned in advance by Hutu extremists (including Habyarimana's own family) to regain political power lost during the Aruba peace accord and other concessions granted in the three years leading up to the genocide. (Sources for this include MI6 and books I have read on the genocide have alluded to this fact, including Season of Blood: A Rwandan Journey).