Essex police want to speak to this man after an alleged assault in Brentwood.
Officers released the CCTV images in an effort to speak to the many after the incident at about 1.10pm on Monday, July 16, in Shenfield Road.
A man is alleged to have punched a bus driver after his ticket was refused.
Anyone with any information is asked to contact Luke Callander on 101, or Crimestoppers anonymously on 0800 555 111.
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