In 1991 she co-authored the New South Wales Charter of Reform of Government. In the same year, she was re-elected for a second term with a massive swing in her favour, increasing her share from 26.7 per cent to 43 per cent. Her power also increased dramatically when, along with fellow independents Peter Macdonald and Tony Windsor, she gained the balance of power in the Legislative Assembly. Moore was to again take the spotlight when the Independent Commission Against Corruption handed down a finding that was sharply critical of Liberal Premier Nick Greiner on 1 June 1992. While the findings were still pending a ruling in the NSW Court of Appeals, Moore and two other Independent MPs made a symbolic march to the NSW Parliament with a threat to withdraw their support of the coalition's minority-government. Hence before the Court ruling was handed down, Greiner's hand was forced, and he resigned on 24 June 1992.