More states join call for fake drugs ban FOUR more states and territories have joined NSW in calling for the federal government to outlaw synthetic drugs, the state's fair trading minister says. Queensland, Victoria, South Australia and the ACT have all told NSW they support a federal ban on the products, Anthony Roberts said on Tuesday. Mr Roberts accused the federal government of "hiding" since NSW announced its ban two days ago. "This is not just a state responsibility, it's the responsibility of the whole of government," Mr Roberts told reporters in Sydney. Synthetic drugs have been banned in NSW since Sunday following the death of Sydney teenager Henry Kwan, who plunged from a balcony thinking he could fly after taking a version of LSD bought on the internet. Mr Roberts denied that outlawing the drugs was a response to Henry's death, saying that a 15-month parliamentary report on the synthetic substances tabled in the week before his death had already canvassed the issue. The Australian Greens earlier warned against a knee jerk reaction to the dangers posed by synthetic drugs, with Senator Richard Di Natale calling for a measured public health response. Senator Di Natale, who was a doctor before entering parliament, said there was a danger in going down the "law and order route." "It may in fact make things worse and expose people to much more harm," he told ABC radio on Monday. But Mr Roberts denied that banning the drugs would force them underground, creating a bigger black market. We have not created a bigger black market ... We're doing what we can to protect people," he said. On Tuesday 120 officers from the Department of Fair Trading were on the ground across NSW visiting retailers and telling them how to surrender their remaining stock.