A cat died after being shot by an air weapon in Clowne.
Police are now looking to trace a man wearing camouflage clothing, including a camo hat who was seen in the area at the time of the incident.
Officers were called to Slaley Lane, following reports that a cat had been shot.
The incident happened at around 4.25pm on Thursday, November 20.
The cat died instantly.
Police are searching for a man who was seen in the area described as white, around 6ft tall and of big build.
He wore spoke with a deep voice.
Anyone with any information about the incident should call PC Jason Graham on 101, quoting crime number 49634/14 or call Crimestoppers anonymously on 0800 555 111.