Police are still working to determine how long a body found in a suitcase by the side of a road in southern NSW had gone undiscovered.Two members of the public alerted authorities just before 1pm on Sunday after making the grim discovery near Wolgon Road at Oallen, about 60 kilometres south-east of Goulburn.Police in southern NSW are treating the death as suspicious.ABC NewsCommander of the Hume Police District, Superintendent Linda Bradbury, told ABC 702 Sydney they believed the body was that of an adult female."We're still conducting efforts to identify the remains," she said."That is still underway as they are in a state of decomposition so that will take some time."Forensic examination is underway to assist us in identifying how long that suitcase has been there."Police have confirmed the death is being treated as suspicious.Investigating links to missing peopleAuthorities confirmed that police were investigating potential links between the body and other missing people, after the suitcase was seized for forensic examination."We will be conducting a number of inquiries about what may have happened," Superintendent Bradbury told ABC 702.Oallen is a small village on the Shoalhaven River in the Southern Tablelands, 109km north-east of Canberra and 254km south-west of Sydney.Wolgon Road at Oallen is "not a heavy route for traffic".Supplied / Google MapsSuperintendent Bradbury said the suitcase was located by Wolgon Road and Oallen Ford Road, which was "not a heavy route for traffic"."It is a road that is travelled frequently, but it is in a rural-residential area," she said.Police told the ABC that forensic testing "will take some time" and the homicide squad was involved in the ongoing investigations.- ABC