The Police Ombudsman has appealed for information about a disturbance in the Chapel Hill area of Lisburn on the evening of Sunday May 9.
A fight broke out in a local bar and spilled onto the street outside. Police were called and an altercation took place between officers and a number of people who were arrested.
Anyone who saw what happened in the street after the arrival of the police is asked to contact the Police Ombudsman's freephone witness appeal line on 0800 032 7880.