Police want to speak to the man pictured in connection with an incident where a teenage boy was sexually assaulted in Billericay.
It happened at around 9pm on Friday, July 20 after the victim was followed from Billericay High Street into the Mill Meadows nature reserve.
The images come from Billericay railway station and investigating officers believe the man pictured had travelled by train from London Liverpool Street, arriving at 8.04pm.
If you recognise him, spoke to him or has any information about the incident please call Essex Police on 101 quoting the crime reference number 42/103875/18 or Crimestoppers anonymously on 0800 555 111.
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