Brunswick police are appealing for public assistance to identify two people who used a fraudulent script at a pharmacy in Coburg last month.
Police have been told a woman presented the fraudulent script at the counter of a pharmacy on Sydney Road about 7.30pm on Tuesday 11 June.
A man was waiting for the female at the time.
Police have released an image of a woman and a man who they believe may be able to assist with their enquiries.
Investigators are also investigating a second incident that occurred at another Coburg chemist the day before.
Anyone with any information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au