Gardaí have arrested four people at a checkpoint on the M50 this morning targetting drink and drug driving.
Three people failed tests for alcohol -- and a fourth for drugs.
One of the four already had a driving ban.
The arrests bring to nine the number of drivers caught driving under the influence at checkpoints in the capital this bank holiday weekend.
Motorway Mandatory Intoxicant Testing checkpoint, M50 at Cherrywood this morning. 231 drivers tested for alcohol, 20 for drugs.
Four arrests in total. 3 for positive alcohol tests and 1 for drugs, including a disqualified driver re outstanding arrest warrant #ArriveAlive pic.twitter.com/O0Y9IlW3dO— An Garda Síochána (@GardaTraffic) April 22, 2019