Legal highs 'should be sold like alcohol' Britain should follow the model adopted in New Zealand and allow "legal highs" to be sold to over-18s over pharmacy counters, so that "if you then decide to overdose, at least you know what you're overdosing on," he said. "People don't know what they are getting," he said. People might be taking something much more potent and that can cause problems. The way forward, I think, is to do what they are doing in New Zealand which is essentially turning the law the other way round and saying 'We are going to sell these legal highs but you've got to show it's safe at the dosage you are selling'. Then people will know what they are taking, and then it will be an informed choice. If you then decide to overdose, at least you know what you are overdosing on, but at the moment it is a lottery. A new study carried out on rats' brain tissue found that Benzo Fury could be as dangerous as ecstasy. Dr Jolanta Opacka-Juffry, from the University of Roehampton, said: "Potentially this is an addictive and harmful drug. It may be attractive for its hallucinogenic effects, but there is a trap of potential addiction and the users may not realise that.