New SA bikie laws come into force

New anti-bikie laws have come into force in South Australia, making 10 motorcycle gangs criminal organisations.

Ten bikie gangs in South Australia have been declared criminal organisations with the state's new anti-gang laws coming into effect.

Attorney-General John Rau says there should be an immediate reduction in the activity of the groups concerned.

The gangs covered by the new laws are the Bandidos, Comancheros, Descendants, Finks, Gypsy Jokers, Hells Angels, Mongols, Nomads, Rebels and Red Devils.