A man punched a hotel barman and left him with a bloody nose after being refused alcohol, a court heard.
Przemek Wysocki (32) was being restrained by other patrons when gardai arrived at the scene to find the victim injured.
The case against him was adjourned to allow a victim impact report to be prepared.
Wysocki, with an address at Alexander House, Tallaght, pleaded guilty to assault causing harm to the bar worker at the Camden Court Hotel, Camden Street Lower, Dublin 2.
The DPP directed summary disposal of the case at district court.
Judge Anthony Halpin asked for an outline of the evidence before Dublin District Court so he could consider whether to accept jurisdiction.
Gda Sgt Eimear Curran said the incident happened at 1.55am last December 17.
Gardai spoke to the barman, who said a customer had become angry after being refused drink and lashed out.
Sgt Curran said the victim had suffered a swollen and bloody nose.
Wyscoki was acting in an aggressive and abusive manner when gardai arrived at the scene.
Members of the public were holding on to him and gardai then handcuffed and arrested him.
Wysocki was removed from the hotel and taken to Kevin Street Garda Station.
Judge Halpin said that he would be "guided by the DPP" and would be able to hear the case.
Barrister John Griffin said the defence had received CCTV images disclosed by the prosecution and Wysocki was prepared to plead guilty.
He was seeking time to "get some compensation together".
Judge Halpin said the court would need to hear the views of the victim before the case could be completed.
He adjourned the hearing to September 21 and remanded Wysocki on continuing bail.