Police would like to talk to this woman about a report that money left at a cash machine outside Tesco Express, in Hanging Hill Lane, Hutton, was stolen at around 4.30pm on Friday July 24.
A man had withdrawn hundreds of pounds using two separate cards.
He walked away, leaving a three-figure sum at the machine.
A man and woman were standing behind him and ran off with the money.
Anyone with information is asked to call Essex Police on 101 quoting crime reference 42/110791/20 or you can report information by visiting www.essex.police.uk.
Alternatively, you can call Crimestoppers anonymously on 0800 555 111.