Officers are investigating a break-in to a compound at Tilhill Forsestry in Locharbriggs.
The break-in happened sometime between Wednesday 20 December 2017 and Friday 5 January 2018. Chemicals and an engine and pump have been stolen in the raid. The value of the property stolen is over £3000.
Sergeant Alan McGowan at Dumfries said, "We want to hear from anyone who may have been past the Tilhill Forsetry yard in Locharbriggs over the festive period and who may have seen or heard anything suspicious.
"Clearly a vehicle must have been used to take the property away and again any suspicious vehicle movements over this period would be of interest to us. Callers can reach us on the 101 number, quoting PDG 0006740118.