The drug behind a public overdose in Auckland’s SkyCity on Monday is now being forensically examined by government scientists, NZ Herald reports. Police confirmed the seized substance has been handed over to ESR for testing. The three people – two men and a woman – who are believed to have overdosed on the synthetic substance are now recovering in Auckland Hospital. Last month Wellington Police warned members of the public about a rare and highly dangerous methamphetamine-like substitute called Isopropylbenzylamine that might be doing the rounds.