A motorcycle gang in Australia, where such groups have been targeted over violence and drug trafficking, has challenged the constitutionality of a law that would make it easier to declare them a criminal gang.
Leaders of the Finks, whose motto is "Attitude with Violence", have asked Australia's highest court to overturn laws they say are draconian and threaten civil freedoms.
Under the laws, police in tropical Queensland state have sought to have the Finks declared a criminal gang. Similar laws have been used elsewhere in Australia.