Can Vaping Make You Fail a UK Roadside Breathalyser or Saliva Drug‑Swab in 2026? New Evidence on Ethanol and THC/CBD
Recent lab work shows that e‑liquids containing ethanol can trigger a temporary positive on roadside breathalysers, while vaping THC or using THC‑contaminated CBD products can produce positive saliva drug swabs. This article explains the evidence, how UK roadside testing works, and practical steps vapers can take to reduce risk.