Twenty-six pubs could face prosecution for breaching coronavirus health regulations or licensing laws, gardaí have said.
Gardaí carried out 6,830 checks on pubs and restaurants between Friday July 3 and the evening of Sunday July 5.
Pubs that serve food and restaurants reopened to the public on Monday June 29 after further restrictions were lifted by the Republic's government.
During Operation Navigation, gardai said 2,785 individual licensed premises were open for business.
The vast majority - 2,759 - of premises were complying with regulations and licensing laws.
But in a small number of cases - 26 licensed premises - gardaí found potential breaches of the health regulations or licensing laws even after providing the premises with the opportunity to rectify the situation.
Files will now be prepared for the DPP in each of these cases, gardaí said.
In many of the cases, gardaí found customers drinking alcohol but no evidence of food being served or receipts to show food had been sold.
Gardaí also said there was a lack of adherence to public health advice such as allowing large groups at one table, with little to no social distancing, no advisory signage, and no Covid-19 contact tracing being recorded.
Deputy Garda Commissioner John Twomey said: "The significant number of visits conducted by gardai found a large level of compliance among licensed premises. This is very welcome.
"However, we remain concerned that a minority are potentially operating in breach of the regulations. In doing so, they are putting the health of their customers and staff and everyone they come into contact with after at risk of getting Covid-19.
"We are sending a clear message to such premises that we will be opposing their liquor licence renewal applications in September unless they come into compliance.
"In addition, the public has shown great restraint and responsibility to date in adhering to the public health guidelines. The reality is that Covid-19 is still here. We all have an individual responsibility to ensure we continue to play our part in reducing the spread of Covid-19 to protect our family, friends and neighbours."
Mr Twomey also reminded publicans that under liquor licensing laws, licensed premises require a declaration of suitability from a member of An Garda Síochána in order for its liquor licence to be renewed.
Yesterday, the health authorities announced 11 confirmed cases of Covid-19 but no new deaths.
