Nearly 400 litres of home-made alcohol was seized in Irish prisons last year.
More than a third of the 'hooch' was recovered from Mountjoy Prison - at 149 litres.
Castlerea Prison in Co Roscommon is the next worst, at 72 litres.
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Almost 100 litres was seized from two jails in Co Laois - Portlaoise and Midlands Prisons.