At approximately 5pm on Wednesday members of the Galway Divisional Drugs unit, who were assisted by the Tuam Crime Unit, stopped a vehicle on the outskirts of Tuam.
A search of the vehicle yielded a quantity of cocaine with an estimated value of €20,000. The illegal drugs were hidden from sight in the vehicle.
Following the discovery, gardaí later conducted a search at a house in Tuam town.
Cocaine with an estimated value of €10,000 was discovered at the house.
A man in his early 20s was arrested in relation to both seizures.
The arrested man was taken to Tuam garda station where he was detained under Section 4 of the Criminal Justice Act 1984. He was later released without charge.
A file is currently being prepared for the Director of Public Prosecution.
The searches were carried out as part of the ongoing Operation Tara, designed to disrupt the illegal drug trade.