A heroin addict punched an off-duty police officer in the face and threatened him and his friend with a broken bottle. The victims chased after him and tackled him to the ground before police arrived.
Jonathon Morgans, 45, approached Joseph Hurley in Cardiff city centre on June 9 last year and asked him if he wanted to buy drugs. Mr Hurley told him to "clear off" but the defendant responded by punching him to the face with a single blow.
A sentencing hearing at Cardiff Crown Court on Friday heard Mr Hurley could feel blood in his mouth and a cut to his lip. Prosecutor Clare Wilks said Morgans ran off but was pursued by the victim and his friend Jamie Bull.