A mobile phone was allegedly stolen from a table in Burger King on Watford High Street between 2pm and 2.25pm on Thursday, February 23.
Officers have now released a CCTV image of a man they would like to identify following the theft.
PC Ben James, who is investigating, said: “We’ve been conducting several lines of enquiry since the incident was reported.
“We are now seeking the public’s help to identify the man in the photo as it is believed he was in the area at the time of the incident and may have information that could help us with our investigation. If you recognise him, please contact me at Benjamin.James@herts.police.uk”
You can report information online at herts.police.uk/report, speak to an operator in the Force Communications Room via the online web chat at herts.police.uk/contact or call the non-emergency number 101, quoting crime reference 41/15671/23.
Alternatively, you can stay 100 per cent anonymous by contacting the independent charity Crimestoppers on 0800 555 111 or via their untraceable online form at crimestoppers-uk.org