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I also happened to come across this but it doesn't give too much away - perhaps Waymat cares to expand? http://www.pollbludger.com/sa2006/enfield.htm - ""Rau denied threatening to sue Joyce for this sum, saying he had merely called his attention to the precedent of Mitchell MP Kris Hanna's successful action against outgoing Bright MP Wayne Matthew."" What successful action was taken against Wayne Matthew?  "