Strathclyde Police said Annihilation was one of many psychoactive substances they been made aware of in recent months.

BBC: Annihilation legal high leaves nine in hospital

As in Britain, the New Zealand government had attempted to control the influx of new psychoactive substances by imposing emergency restrictions under existing misuse of drugs legislation.

BBC: Kiwis on drugs: A blueprint for the future?

He presents data from pharmacological or epidemiological studies on what exactly those are, bolstering his argument with discussions on the nature of addiction and changing attitudes to psychoactive substances throughout history.

ECONOMIST: Plain speaking on a highly coloured issue

"You would expect a spontaneous remission rate of 10% within in a year, " said Professor Paul Salkovskis, Maudsley Hospital Centre for Anxiety Disorders, who asks whether it is safe to give people with OCD psychoactive substances at all.

BBC: "Doc, I am ready to play ball."