Gardai stormed six separate premises at once on Thursday in a major operation in Co Tipperary.
Roscrea agents investigating the sale and supply of drugs hit several properties with searches as well as checkpoints around town.
Cannabis, cocaine and heroin were found during the searches while two terrier dogs were also seized for safety.
Multiple traffic offenses were detected at checkpoints while a man on foot was arrested in the city.
A Garda spokesperson said: “As part of an ongoing investigation into the sale and supply of drugs in the Roscrea area, the Gardaí carried out 6 simultaneous searches at separate addresses in the town.
“All premises were searched under an Misuse of Drugs Act warrant and quantities of cannabis, cocaine and traces of heroin, submitted for analysis, were located at various addresses together with evidence of the sale and supply of these controlled drugs.
“During a search, Gardaí were unhappy with the welfare of two terriers and they were seized, with their consent, and taken to a local vet for evaluation before being released into the care of the ISCA.
“These searches were supported by staff from the Divisional Roads Policing Unit who detected a number of traffic violations during the search period, resulting in the seizure of the vehicle.
“A man was also arrested on the basis of an exceptional arrest warrant.
“Inquiries are continuing into these offenses and Gardaí in Roscrea calls on the public to contact them for any information on (0505) 24230.
“Dossiers are being prepared for the Director of Public Prosecutions in these cases.”
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