Robinvale Police are urging locals with information on suspicious or loitering behaviour to come forward.
The call has been after receiving reports of suspect behaviour in the Robinvale and Euston areas last week.
Officers have already arrested and interviewed a 45-year-old Robinvale man; with the man set to appear in court and investigations continuing.
Anyone with details on suspicious behaviour involving a VT Holden Commodore Sedan in Silver or with a male described as mid 40's in age, 175 -180 centimetres tall, with thin build and Asian in appearance are encouraged to come forward.
Sunraysia locals with information that may assist in the investigation are being urged to call Robinvale Police on 5026 3002, or Crime Stoppers on 1800 333 000.