Several crucial garda units could be moved to Thornton Hall, under proposals being examined for the future of the stalled prison site.
The force will have to vacate its offices at Harcourt Square in Dublin, which is the headquarters of several key garda units, by the end of next year.
The building is currently home to the Criminal Assets Bureau, Garda Bureau of Fraud Investigation, the National Bureau of Criminal Investigation, the Garda mapping section, and the administrative arms of the water and air support units.
However, some or all of these units could end up moving to the Thornton Hall site in north county Dublin.
Noel Waters, the acting secretary general of the Department of Justice, said Thornton Hall was one of six sites being looked at by the Office of Public Works.
IDA Ireland has also been sounded out about using the site.