Police in south Belfast seized more than 200 cases of booze on St Patrick's Day after a search of a business on the Ormeau Road under the licensing order.
The raid was sparked after a number of people raised concerns around the potential illegal sale of alcohol in the area.
Chief Inspector Gavin Kirkpatrick said: "Our licensing officer working alongside our City Centre Neighbourhood Policing team obtained a warrant and carried out the search, locating 176 cases of beer, 50 cases of wine, 141 bottles of spirits, 72 litres of cider and 76 bottles of alcopops, which we suspect were being sold locally illegally.
"While our investigation into this matter is ongoing, one man was cautioned for the offence of selling intoxicating liquor without a licence.
"Police regularly respond to incidents involving noisy parties, drinking in public spaces and anti-social behaviour, and often seize alcohol from young people who are under 18 years of age, who are clearly obtaining alcohol illegally."
Chief Insp Kirkpatrick added: "It is disappointing that while many within our local hospitality sector continue to make significant sacrifices, either remaining closed or operating professionally within the current health regulations, others seem to think they are exempt from the restrictions and licensing legislation."