The ‘Two-Pin’ technique increases sanitation for multiple dose vial users. They draw with the first pin, and then shoot/inject into the body with a new one. This procedure prevents any residual contaminants that may have remained on the drawing pin from being transferred into the body via the injection site. It also makes injection less painful since the drawing needle is necessarily dulled during passage through the rubber stopper atop the vial. A dulled needle increases injection pain because it doesn’t pierce the body as cleanly as an unused one. The protocol below is followed by AAS users who draw from multiple dose vials, but steps 4 - 8 are routinely disregarded by those users who draw from ampoules (also called ampules) and sachets.
The most significant published criticism has been an article by Colin Mangham, the director of research for the Drug Prevention Network of Canada, in the online-only Journal of Global Drug Policy and Practice (JGDPP), which is said to be "posing as open-access, peer-reviewed scientific journal"    In the article Mangham claims that "the published evaluations and especially reports in the popular media overstate findings, downplay or ignore negative findings, report meaningless findings and overall, give an impression the facility is successful, when in fact the research clearly shows a lack of program impact and success."  He also claimed that interviews with area treatment centres revealed no referrals from Insite, and that police presence was deliberately bolstered in the area.  Based on this article, Tony Clement told an August 2007 meeting of the Canadian Medical Association that his belief that Insite should close had been reaffirmed. Clement stated that "there has been more research done, and some of it has been questioning of the research that has already taken place and questioning of the methodology of those associated with Insite."  The Journal of Global Drug Policy and Practice that Clement was referring to is run by the Drug Free America Foundation , and received much of its initial funding in a $ million grant from a . Department of Justice agency now under investigation for corruption.