Detectives have released an e-fit of a suspect they want to speak to about a robbery in Burton.
An 18-year-old man was threatened with a knife as he walked along Empire Road in Winshill at 7.45pm on May 6.
A wallet was taken in the robbery and officers have released the image in a bid to identify the offender.
He is described as white, aged 30 and 5ft 10ins tall with a skinny build. He had having sunken features and wore a black zip-up hooded top, blue jeans and dirty skater style trainers.
Anyone who recognises him or who has any information is asked to contact DC Edward Rowe at Staffordshire Police on 101 quoting incident number 619 of 6 May, or Crimestoppers anonymously on 0800 555 111.