US criminal defense lawyer Alan Dershowitz says he plans to submit testimony from former Bosnian Serb political leader and war crimes suspect Radovan Karadzic to present as evidence in a related case at the UN Yugoslav Tribunal. Dershowitz is helping defend Momcilo Krajisnik, the former speaker of the Bosnian Serb parliament, who is appealing a 27-year-sentence for persecution, extermination and the murder of Muslims and Croats during the 1992-1995 Bosnian War. At Krajisnik's appeals hearing in The Hague on Thursday, Dershowitz said he had already met briefly with Karadzic. "He will in fact be providing very significant exculpatory evidence," in the Krajisnik case, Dershowitz said. Karadzic was transferred to the tribunal July 30 and has yet to enter a plea to charges including genocide.