Teenage Mutant Ninja Turtle pills containing twice the normal dose of MDMA were circulating at this year's Secret Garden Party, it has been claimed.
An independent and "non-judgemental" drug testing charity called The Loop said it found the pills during testing at the event, an alternative music festival in Abbots Ripton near Huntingdon, that was revived this year following a five-year hiatus.
And it also found fake pills that contained plaster of Paris and N-ethylpentylone being sold as MDMA, which is the psychoactive ingredient used in ecstasy.