Motorists are being reminded that they may be over the legal limit this morning if they have been drinking last night.
Two people have lost their lives so far this bank holiday weekend and Gardaí will be out in force today to try prevent further fatalities.
We are being urged to concentrate on the roads after it was revealed that people who use their phones are more likely to engage in other risky behaviour.
CEO of the Road Safety Authority, Moyagh Murdock, has said the guards will be breathalyzing drivers if they are caught committing a minor offence.
"Drivers are more likely to speed, they're more likely to not have their seat belt on so this weekend the message going through following this research is if the guards do detect someone committing a minor road traffic offence, they will breathalyse that driver also."