Almost 690 drivers were caught speeding on National Slow Down Day.
The operation began at 7am yesterday and ran for 24 hours.
Examples include a driver travelling at 151 kilometres per hour in a 100 zone on the N4 near Mullingar.
Another motorist was caught speeding at 94 kilometres per hour in a 60 zone on the same road in Carrick on Shannon.
In Donegal, a driver was arrested after being detected travelling at 140kph in a 100kph zone. The driver subsequently tested positive for cocaine.
