Two people have been assaulted during an attempted theft in Royal Wootton Bassett.
The incident took place at Iceland supermarket, in High Street, at around 9.20am on Monday 15 January.
The suspect had been trying to steal bottles of alcohol and when a female shop assistant and male bystander tried to intervene, he assaulted them both.
The bystander, is in his 70s, was hit with a bottle and required medical treatment for a head injury.
The member of staff was kicked and left with bruising on her ankle.
He is described as having a foreign accent, and at the time of Monday’s incident, he was wearing black jeans, a black coat, a multi-coloured scarf and a black beanie.
PC Richard Clark, from North Wiltshire Community Policing Team, said: “We are appealing for anyone who might know the suspect, or anyone who might have seen the incident, to speak to us.
“This was a frightening incident, and although nobody was seriously hurt, everyone involved was left understandably shaken.
“I am appealing for the public’s help so we can speak to this individual about this disgusting attack on a member of staff doing her job and an elderly member of the public who attempted to help. This behaviour won’t be tolerated.”
Anyone who recognises the person in the CCTV is asked to asked to contact Wiltshire Police.
Witnesses to the assault on Monday 15 January are asked to contact PC Clark at Wiltshire Police on 101 or contact Crimestoppers anonymously on 0800 555 111.