Dáil constituencies are to be revised in the light of the latest Census figures - but not until after the forthcoming General Election.

The Minister for the Environment, Dick Roche, today told Cabinet colleagues that he would establish a Constituency Boundary Commission after the CSO publishes its final report on the recent Census.

But the Commission is not expected to report for some months, meaning the existing constituencies will be used in the General Election.

In the Dáil today, Labour leader Pat Rabbitte asked the Taoiseach if he believed there was a threat of legal challenge to the results if the Census results were not reflected in the boundaries.

Mr Ahern indicated he did not believe there was any legal problem with the existing constituencies.