Jewellery and cash was stolen during a burglary earlier this month.
A property in Rosemary Drive, Napsbury Park, London Colney, was broken into on Sunday August 4 at around 1am.
Police have released a CCTV image of a man they would like to speak to because officers believe he may have information which could help with their investigation.
Anyone who recognises him should email Detective Constable Sally Brown by emailing sally.brown2@herts.pnn.police.uk, call 101 quoting 41/70615/19 or call Crimestoppers anonymously on 0800555111.
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