Clive Palmer says Queensland court action makes WA move to avoid damages 'unconstitutional'

Billionaire says Queensland supreme court has registered two arbitration awards, protecting them under the constitution from Western Australia's legislation

Western Australia's government is working to push through extraordinary laws to head off Clive Palmer's potential $30bn claim against the state, but the businessman says a Queensland court decision makes the WA move unconstitutional.

Palmer has also sought an injunction in the federal court requiring the WA government to withdraw from parliament its unprecedented legislation which would amend a 2002 state agreement with Mineralogy.