Police raid properties after bikie brawl - ABC News (Australian Broadcasting Corporation): "WA Police have searched 20 properties from Geraldton to Mandurah in a series of coordinated raids targeting outlaw motorcycle gangs.
The search warrants are part of an investigation into a violent brawl involving members of the Finks, Coffin Cheaters and Club Deroes motorcycle gangs at the Kwinana Motorplex on Sunday.
Police say they were searching for weapons including baseball bats, knives and a handgun.
Inspector Paul McMurtrie from the Specialist Crime Squad says a number of people have been arrested.
'There's been numerous drug, firearm and property charges resulting from the execution of the search warrants,' he said.
Meanwhile, a body representing bikie gangs in Perth has disputed police claims that up to 20 people were involved in the brawl."