Title to land based on traditional Aboriginal and Torres Strait Island law and custom. In 1992, the High Court of Australia recognised that Murray Islanders were entitled "as against the whole world, to possession, occupation, use and enjoyment of the lands of the Murray Islands" (see Mabo v Queensland [No 2] 919920 175 CLR1). This meant that Australia could no longer be regarded as terra nullius at the time of colonisation. The extent of the native title of a group of indigenous people depends upon that group’s particular customs and traditions. Native title can be lost in a number of ways, including the indigenous people losing their connection with the land, Crown grants of freehold title, and other grants which are inconsistent with its existence.