Gardaí have continued to follow their procedures for breathalysing drivers, one month after the Supreme Court found the manner in which the "intoxiliser" breath-test unit was used was unlawful.
A Garda spokeswoman said gardaí were awaiting instructions from the Director of Public Prosecutions on the issue.
Last month, the Supreme Court ruled it was unlawful for gardaí to have detained a person for 20 minutes before seeking to administer the breath-test device. The 20-minute waiting period is in Garda guidelines and had been recommended by the product's manufacturers.
The delay was to ensure there was no residual alcohol in the mouth or throat which might distort the result.
Up to 2,000 drink-driving cases were adjourned, pending the result of the Supreme Court hearing.
A spokesman for the Courts Service said most of these cases would not be back in court for some time.
A spokesman for the Minister for Transport, Mr Brennan, said tthe Attorney General was studying the issue.
