"In Australia the [Needle and Syringe] Program is the single most important and cost-effective strategy in reducing drug-related harms among IDUs. Australian Governments invested $130 million in NSPs between 1991 and 2000 resulting in the prevention of an estimated 25,000 HIV infections and 21,000 HCV infections, with savings from avoided treatment costs of up to $7.8 billion (Health Outcomes International et al., 2002). In the decade 2000-2009, the gross funding for NSPs was $243 million. This investment yielded healthcare cost savings of $1.28 billion; a gain of approximately 140,000 Disability-Adjusted Life Years (DALYs); and a net cost saving of $1.03 billion. During this time, NSPs have averted 32,061 new HIV infections and 96,918 new HCV infections (NCHECR, 2009)."

Source

Victorian Department of Human Services (2010), National needle and syringe programs strategic framework 2010-2014, Commonwealth of Australia, p. 14.
http://www.health.gov.au...