Derbyshire Police have released this image as part of an investigation into the theft of a valuable phone from an O2 store display.
The Samsung Galaxy S8 Plus was stolen by a man who walked into the branch in Spring Gardens, Buxton.
He cut the security wire tethering the phone to a display stand and then ran off.
Officers have released a CCTV photo of a man we would like to speak to about the incident, which happened at the end of April.
If you recognise the man shown, call PC Alex Clarke on 101, quoting reference 17000176384.
Alternatively, send a message online by visiting www.derbyshire.police.uk/Contact-Us.
You can also call Crimestoppers on 0800 555 111.