Devon and Cornwall Police have appealed for information after a taxi marshal was assaulted in an unprovoked attack in Plymouth.
Officers are investigating an incident which happened in Raleigh Street between 2.30am and 3.30am on Saturday 17 August.
The victim, a man aged in his 20s, was assaulted and suffered a dislocated shoulder.
Police have urged any witnesses to come forward.
Anyone who has information can contact police by calling 101, or emailing firstname.lastname@example.org, quoting crime reference CR/087827/19.
Information can also be passed anonymously to independent charity Crimestoppers by calling 0800 555111.