The alleged assault took place last Monday afternoon.
Police are investigating reports of an assault at a Chesterfield pub late last month.
It happened last Monday afternoon at Spa Lane Vaults on St Mary's Gate at around 3.30pm.
The incident resulted in a 19 year old woman getting grabbed by the throat, although she didn't sustain any injuries.
Officers now want to speak with the woman pictured below in relation to the investigation;