Police hope to find this man who they believe is a potential witness in a sex assault investigation.
A woman was forced to commit a sex act on a man close to The Meadows Shopping Centre, Chelmsford, between 1am and 2am on Sunday February 22.
Investigating officers believe this man could be a witness and may have vital information.
Anyone who recognises him is asked to contact Pc Lisa Puttock at the north Sexual Offences Investigation Team on 101.
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