There were six arrests made for a range of offences following a checkpoint on the M7 yesterday.
Members from Portlaoise and Tullamore Garda stations, along with Customs and the RSA, conducted a multi agency checkpoint on the M7 at Derryvorrigan, Borris-in-Ossory.
Four drivers were detected driving under the influence of drugs and were arrested.
One person was arrested after they were found in possession of €700 worth of cocaine.
While another person was arrested on foot of a live bench warrant and brought before Portlaoise District Court.
Seven drivers were detected driving with agri (green) diesel in their fuel tanks and now face fines of up to €2,000.
A Garda spokesperson said: “A number of fixed charge notices were issued for minor road traffic offences.
“Finally, one driver who was stopped while attempting to drive from Dublin to Limerick on a flat tyre and then had to request emergency breakdown assistance as the spare in the boot was also flat.
“An Garda Síochána would like to thank road users for the patience and during this operation.”