Gardai carried out more than 6,000 checks at licensed premises across the country over the weekend.
Operation Navigation inspections began at 7pm on Friday with the vast majority of pubs and restaurants found to be complying with public health guidelines.
However, concerns have been raised after hundreds of people gathered to drink in Dublin City Centre on Saturday night.
Garda Commissioner Drew Harris says this incident did come to their attention: "The vast majority were compliant, we did find breaches of the regulations but we also found breaches of licensing laws, in a minority of cases.
"We also found a situation which was highlighted on social media on Dame Lane where indeed that in effect was a public order situation and was dealt with as such."
