 In November 2007, however, Kaua resigned from Cabinet and joined the Opposition.The following month, Sogavare's government was ousted in a vote of no confidence, and Kaua was appointed Minister for Justice and Legal Affairs by new Prime Minister Derek Sikua, a position which he held until August 2010.He retained his seat in Parliament in the August 2010 general election, and served as a government backbencher for the remaining months of his life.