Checking your drink for drugs no longer needs to feel like a science experiment. Scientists in South Korea have created a new solution, a temporary tattoo sticker that instantly detects tampering.

A temporary tattoo could prevent "spiking" by detecting drugs in drinks. The sticker responds within one second to even low concentrations of the drug γ-hydroxybutyrate (GHB), say scientists. Downing ...

Steve first spotted the eye-catching stickers while walking to the shops in Burton upon Trent. Plastered on bins and lamp posts, they featured a shiny, green cannabis leaf with a QR code and the words ...