Butane honey oil, herbal cannabis and ketamine were among the contraband seized.
Nearly €700,000 worth of drugs has been seized in the midlands and Dublin.
Revenue officers discovered 23.5 kgs of butane honey oil, 9.4 kgs of herbal cannabis and 513g of ketamine during parcel searches over the past week.
They were worth a combined a value of €690,500, while other illegal drugs, worth around €3,600, were also seized.
They were found in parcels which originated in the USA, the UK, the Netherlands, Sweden, India, Canada and Thailand and were intended for addresses nationwide.
Revenue officers also seized a quantity of retail goods, with an estimated value of €19,600, due to infringements of Intellectual Property Rights.
Alcohol with a retail value of over €2,300, representing a potential loss to the Exchequer of almost €1,300, was seized in another standalone operation.
These seizures are part of Revenue’s ongoing operations targeting smuggling and shadow economy activity.
Officers are urging any businesses, or members of the public, with any information regarding smuggling, to contact Revenue in confidence on 1800 295 295.
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