Help solve oldest case
STACY DeSilvie last contacted his parents on April 20, 1994, when he was on his way back home to Sydney after travelling around Queensland for almost two years.
Mr DeSilvie last spoke to his son who said he was stranded at Armidale, in the NSW New England region.
This was the last contact the family had with their son. Stacy DeSilvie is one of around 1600 people currently listed as missing across Australia.
In 2011, more than 12000 people were reported missing to police in NSW.
Of those people, 46 remain missing.
There are currently more than 600 people who have been missing for more than 12 months listed as long-term missing in NSW
With National Missing Persons Week 2012 being this week, police are renewing their appeal for information on Mr DeSilvie.
Police investigating Mr DeSilvie's disappearance said there were a number of minor transactions performed on Mr DeSilvie's bank account in the Lismore area in the days following his last contact with his parents.
A coronial inquest into Mr DeSilvie's disappearance held at Lismore court in 2008 delivered an open finding into the case. Investigations both in Australia and overseas have failed to find Mr DeSilvie.
Richmond local area command crime manager Inspector Greg Moore said his disappearance has remained a mystery and is one of the command's oldest missing person cases.
The theme of National Missing Persons Week this year is, "Take the time to let somebody know".
The focus for this year's Missing Persons Week is "Youth and the prevention of youth from going missing!"