Gardai have arrested 42 people and seized 20,000 euro (£17,939) worth of drugs as part of a major anti-crime offensive.
Almost 80 police checkpoints were set up across Co Kilkenny and 21 premises searched on Wednesday under the crackdown codenamed Operation Thor - Project Storm.
Five vehicles were also seized during the operation.
The majority of the arrests - 27 - were for theft, assault, fraud, burglary and drugs offences. Another 15 people were arrested on warrant.
The Garda said the purpose of the operation was to "prevent crime, disrupt criminal activity, apprehend criminals and to enhance community engagement".
"The operation included Garda checkpoints and community Gardai informing members of the public to increase awareness of protection of personal property and possessions," a spokesman said.
Seventeen people are currently detained at Kilkenny and Carlow garda stations under section four of the Criminal Justice Act 1984 and a further 10 have been charged to appear before the courts in the coming weeks.