Three Mafia figures living freely in Australia and labelled "extremely dangerous" by Italian authorities have been sentenced in absentia to long jail terms for international drug trafficking.

Undercover operation combating triad related activities is getting tougher because triad members have become more cautious, police said on Monday, following another large-scale anti-triad operation code named Nightstinger.

South Australian police say they have smashed a multi-million dollar cannabis distribution and money laundering syndicate with the arrest of four men

Police say they have arrested every patched member of the Taranaki branch of the Rebels gang today as they continue to crack down on organised crime

Police arrested over 1,000 people and seized dangerous drugs and illicit goods worth about 11 million HK dollars during an anti-crime joint operation by the Hong Kong, Guangdong and Macao police between July 1 and July 31

Australia's popular Gold Coast tourist playground was reeling from another murder on Thursday with the Queensland Police Union saying it had become the country's crime capital

The leaking of highly sensitive NSW and Victorian police intelligence to outlaw bikie gangs is compromising state and national organised crime investigations and potentially endangering the lives of informers

Another blow has been dealt to drug syndicates in Australia, with the arrest of two men over the importation of 42kg of heroin in a shipment of furniture

An international drug ring that allegedly used couriers to traffic heroin into Australia and Vietnam has been smashed, removing an estimated $8 million worth of drugs off the streets

Organised criminals linked to bikie gangs are among rogue dumpers who have infiltrated the waste disposal industry and are scattering hazardous waste across Sydney