THE HAGUE (Reuters) - United Nations war crimes prosecutor Louise Arbour will finally travel to Kosovo next week, six months after Yugoslavia turned her back at the border. Arbour‘s visit to the southern Serbian province will be "very much a working trip", her spokesman Paul Risley said. U.N. investigators are busy gathering evidence that could be used in court against Yugoslav President Slobodan Milosevic and four of his associates, indicted in May for crimes against humanity and violations of the laws or customs of war. "There is much business left undone in Kosovo," Risley said. Arbour‘s schedule will take her to Albania on Sunday, Macedonia on Monday and Kosovo on Tuesday and Wednesday. She will round off her trip in Bosnia and Croatia. In Kosovo, Arbour is expecting to meet General Michael Jackson, commander of the KFOR peacekeeping force in Kosovo, and the Bernard Kouchner, the UN‘s chief representative to manage civilian operations in Kosovo. In Albania, Macedonia, Bosnia and Croatia she will meet the justice ministers and possibly foreign ministers. Arbour is leaving the tribunal in September to take up a post at Canada‘s Supreme Court. In January, she was unceremoniously turned back at the border when she tried to enter Kosovo to investigate an alleged massacre by Serb forces in the village of Racak.