Roisin Conaty shows off her maths skills 😂 You Heard It Here First | Listen on BBC Sounds | BBC Radio 4

“In the majority of cases they think they’re taking heroine or valium.” Research shows that deaths in the UK caused by the synthetic opioid Nitazene may have been underestimated by up to a third. Dr Caroline Copeland is Director of the National Programme on Susbtance Use Mortality - she explains to Today why Nitazenes are so dangerous. Today Programme | Listen on BBC Sounds | BBC Radio 4