Motorists high on cocaine or speed are avoiding prosecution, according to Transport Minister Leo Varadkar.
During the debate on the Road Traffic Bill, Mr Varadkar admitted that motorists who have taken drugs were getting away with it.
The new Bill plans to give gardai the power to give motorists American-style on-site drug tests.
Gardai are being trained to check drivers' eyes for dilated pupils and carry out other physical co-ordination tests.
The tests will also include ordering a driver to stand on one leg and also to walk in a straight line.
Mr Varadkar said he wanted to be able to deal with drivers who had taken cocaine or speed but who had not consumed alcohol.
Source: Cormac Byrne, The Evening Herald, 18/04/2011