Police are appealing for witnesses after a fire destroyed a garden shed and badly damaged a greenhouse in Shuttlewood.
Firefighters and police were called to Vivian Street after the shed caught alight at about 1pm on Sunday, September 14.
The shed and various items of garden equipment were destroyed and a nearby greenhouse was also damaged by the heat.
An investigation later revealed that the fire had been started deliberately.
Police want to hear from anyone who saw suspicious activity in the area or might know the offenders responsible for the blaze.
Anyone with information should call Derbyshire police on 101, quoting crime reference 38927/14, or Crimestoppers on 0800 555 111.