AN ADELAIDE-BASED international drug syndicate has been smashed by the Australian Federal Police.

The syndicate is alleged to have used stuff toys, cushions and nappies to import large amounts of pseudoephedrine and methamphetamines into South Australia from Hong Kong.

The syndicate was busted after Customs and Border Protection officers found 126gms of crystal methamphetamine secreted within a stuffed toy in March.

Further surveillance uncovered three other shipments of illicit drugs concealed in various ways over the next three weeks.

It will be alleged they made multiple money transfers to locations in China during this time.

Two properties in Renown Park and a house in Fullarton were raided between April 8-11 leading to the arrest of two men, 28 and 36, and a 20-year-old woman.

Fake Chinese and Australian identification, drugs paraphernalia including scales, stuffed toys with their contents removed and $14,150 cash was seized during the raids.

It will be alleged the man, 36, directed the importation of the packages while the other man facilitated the importations.

It will be alleged the woman collected the drugs for the men.

AFP Adelaide Office Manager Mick Duthie said they had disrupted a complex and sophisticated criminal syndicate.

"Despite efforts by criminal networks to evade detection, authorities are continuing to identify and disrupt the syndicates who attempt to flout Australian law," he said.

The trio have been charged with importing a marketable quantity of border control drugs and precursors.

They will appear in court later today.

Originally published as Police smash international drug ring