There was then a long legal case over the freehold title (actual ownership) of the lands. The case continued until November 1983, when Prime Minister Bob Hawke acknowledged that the Aṉangu had the rights to Uluṟu. On 26 October 1985, they were given the title deeds for the park as the traditional and legal owners of the land. The Territory government protested this decision. It had made a big and expensive campaign to get support and stop it happening. In exchange for ownership, the Aṉangu had to lease the land back to the federal government so that it could stay as a national park. They started managing the park together in April 1986.