Police have released a CCTV image of a man after items were stolen from the petrol station on the Dome Roundabout in north Watford.
Hertfordshire Constabulary said the thefts happened at 6.15pm on Wednesday, December 11, in the Waitrose store at the Shell garage, in St Albans Road.
PCSO Karl Walford, who is investigating the incident, said: "I would like to speak to the man pictured as he may have witnessed the theft or have information that could be vital to the investigation.
"If you recognise the man pictured, or if you recognise yourself, please contact me immediately."
Anyone with information is asked to contact PCSO Walford via Hertfordshire Constabulary’s non-emergency number 101, citing crime reference number C4/13/2639.