A 23-year-old man has admitted headbutting a police officer in an incident in the city centre.
Ciaran Donnelly, of Drumard Park, pleaded guilty to disorderly behaviour and assaulting police on February 11.
Derry Magistrates Court heard that police on patrol in Shipquay Street saw two men fighting and attempted to break it up.
As they did this Donnelly stood in front of an officer to block his way. He swore at the officer, held him by the arms and then headbutted him.
However, it was revealed the officer did not sustain any injury in the assault.
A defence solicitor told the court the 23-year-old had “consumed quite a bit of alcohol” and the fight involved one of his friends.
The solicitor said Donnelly only became involved because he thought police had “got the wrong man” and he “saw red mist”.
District Judge Barney McElholm adjourned sentencing until August 13 to see if the 23-year-old is suitable for community service.