12/07/2026
💡Cardiff did you know...? one of the world's most important road safety inventions has its roots right here in Cardiff.
In 1967, Welsh scientist Dr Tom Parry Jones OBE and electrical engineer Bill Ducie founded Lion Laboratories in Cardiff. Working from humble beginnings in a terraced house in Splott, they set out to improve the way drink-driving was detected.
Following the introduction of the Road Safety Act 1967, the team first developed the Alcolyser, before going on to create the world's first hand-held electronic breathalyser using electrochemical fuel cell technology. It was smaller, faster and significantly more reliable than earlier chemical testing methods, becoming the blueprint for the modern breathalysers used by police forces around the world.
The invention earned Lion Laboratories the Queen's Award for Technological Achievement in 1980, while Dr Parry Jones was later awarded an OBE for his contribution to science and road safety. By 1983, Lion's evidential breath-testing equipment had become the first approved by the Home Office for use in prosecuting drink-driving offences in the UK.
Today, virtually every modern electronic breathalyser traces its heritage back to the pioneering work carried out in Cardiff nearly 60 years ago. It's an innovation that has helped police forces across the globe, changed the way drink-driving laws are enforced, and has undoubtedly played a part in saving countless lives.
Not many cities can say they helped make the world's roads safer, but Cardiff can.