'If Flakka is a problem, they will control it': China holds key to stem designer drugs tide
Drug that is legal on mainland behind new hallucinogen sweeping through United States
A new United Nations report to be released this week will lay out in stark terms what the law enforcement community fear could become the new global drugs menace for the internet age.
And China could hold the key to stemming its spread before it takes hold.
Web-driven demand for designer drugs - officially labelled new psychoactive substances - is expanding rapidly and among the myriad of mind-bending chemical cocktails on the market, a new hallucinogen called Flakka is raising particular concern.
Nicknamed "US$5 insanity'' - due to the quick and cheap high it gives - the drug has been linked to a spate of high-profile cases in the US in recent weeks which have seen people on Flakka go on sprees of demented behaviour.
The drug, and the many synthetic chemical variants on the market, is completely legal in mainland China and is just a mouse click away through companies and websites.
"It's a big deal. It is the new wave of drugs," said a senior law enforcement source working on global narcotics issues.
"It will inundate the US for the next several years."