This study was conducted for a year (June 2001-2002), to determine the number of injection drug users (IDU) willing to attend medically supervised SIFs, if they were available, among participants enrolled in the Vancouver Injection Drug User Study (VIDUS), to test the viability of setting up safer injecting facilities in North American, and if the intervention is having impact on the community adn public health. This contraversial topic has been untested to date, hence the purpose of this research.