Prosecutors at the U.N. tribunal in The Hague are seeking a life sentence for Bosnian Serb politician Momcilo Krajisnik, accused of genocide in the 1992-95 Bosnian war, the tribunal said on Wednesday, according to Reuters. "Each count of the indictment individually, if found to be true, merits the highest possible sentence," a tribunal spokesman cited prosecutor Alan Tieger as saying on Tuesday. "Mr. Krajisnik should be sentenced to prison for life." Krajisnik, a former right-hand man to Bosnian Serb wartime leader Radovan Karadzic, went on trial in February 2004 charged with genocide, complicity in genocide, crimes against humanity and violating the laws or customs of war. Krajisnik, who was seized by NATO-led peacekeepers near Sarajevo in 2000, pleaded not guilty to all counts. The defence said on Wednesday they wanted the court to acquit Krajisnik, saying witness testimony against him was not credible. The tribunal said it expects a judgment in the case on or before Sept. 29. Prosecutors say Krajisnik, 61, was "an unrepentant Serb nationalist" who worked with Karadzic to drive Bosnian Croats and Muslims from parts of Bosnia in the early 1990s. Karadzic, who is still on the run, is charged with responsibility for the 1995 Srebrenica massacre of up to 8,000 Muslims and the brutal siege of Sarajevo. Krajisnik, who was a high ranking member of the Serbian Democratic Party (SDS) led by Karadzic, earned the nickname "Mr. No" for his uncompromising stance in peace negotiations during the conflict between Bosnia's Serbs, Muslims and Croats.