Cranbourne police are investigating the theft of two parcels from a residential premises in Clyde North last month.
It is believed the parcels, which were left at the front door of an address on Blacksmith Way, were taken by an unknown man about 2pm on Friday 14 September.
Investigators have released an image of a man who may be able to assist with their enquiries.
Police are appealing for anyone who was in the area at the time who may have noticed any suspicious behaviour to come forward.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au
