634 motorists have been arrested for driving under the influence of drink or drugs since the start of the year.
In the past week alone 3 people were arrested for drug driving at a checkpoint in Cavan.
Over 27 thousand breath tests have been carried out so far in 2019 at over 5,700 checkpoints.
A car was caught doing 200 kilometres an hour in a 100 kilometre zone on the Castleisland to Limerick road.
Another vehicle was caught driving at 199 kilometres on the N21 at Reens West, Rathkeale in Limerick.