Can Tanzania's security forces be brought to book after post-election chaos?

According to Amnesty International, there's compelling evidence that Tanzania's security forces deployed unnecessary and disproportionate force — including lethal measures — on protesters between October 29 and November 3 after the election. DW's Sella Oneko talks to Amnesty researcher Sikula Oniala and DW correspondent in Tanzania, Noami Jasseda, about updates on the ongoing government probe.