At the beginning of 2009 there were 92 facilities operating in 61 cities, including 30 cities in the Netherlands, 16 cities in Germany and 8 cities in Switzerland. Denmark passed a law allowing municipalities to run "fix rooms" in 2012, and by the end of 2013 there were three open. However, some of the very rationale for the projects in Sydney and Vancouver are specifically to gather data, as they are created as scientific pilot projects. The approach at the centers is also more clinical in nature, as they provide supervision by staff equipped and trained to administer oxygen or naloxone in the case of a heroin or other opioid overdose.