CCTV released after two robberies in Colchester
Police are appealing for information following the robberies in March
When challenged by staff, the man threatened them with either a small knife or a glass bottle.
The first took place around 6:45pm on Saturday, 13 March at Home Bargains, Petrolea Close (crime reference 42/44392/21).
The second took place around 10:15pm on Thursday, 18 March at Co-op, The Square, Iceni Way (crime reference 42/48127/21).
On both occasions he placed goods in a bag and went to leave the store without paying.
The man is described as a white man, mid-late 20s, 5ft 6ins to 5ft 9ins of slim to medium build.
He was wearing a mask but believed to be clean shaven.
His light brown hair was cropped or shaved at the sides, with a distinctive top-knot at the back of the head.
He wore dark-coloured casual clothing both times and carried a black gym bag the first time to remove goods.
If you recognise him you can call 101 quoting the references above, submit a report online or use the 'Live Chat' button to speak to an online operator between 7am-11pm.
Information can also be given to independent charity Crimestoppers 100% anonymously on 0800 555 111.