In March 1982, at a by-election upon the retirement of his father from politics, Court was elected to represent his father's seat of Nedlands, located in Perth's wealthy beachside suburbs, in the state legislature. His time as a government backbencher was short-lived, however, as the opposition Labor Party and its charismatic leader, Brian Burke, won the 1983 state election. Court was elevated to the shadow frontbench in 1984, serving as the opposition spokesman for Resources and Industrial Development, Mines and Aboriginal Affairs. He became deputy leader of the Liberal Party in September 1987, serving under Barry MacKinnon, and became leader in 1992.