Assistant commissioner in charge of roads policing, David Sheahan, said that five out of six people tested positive at a roadside drug test in Dublin over the weekend.

“That phone call or that knock on your door, believe me, it’s the worst thing you can ever imagine,” said Leo Lieghio whose 16-year-old daughter was killed in a hit-and-run in 2005.

Three women whose lives were shattered by road tragedies have been honoured for devoting their lives to improving road safety.