Some postulate that supervised injection sites help reduce needles that are improperly thrown in public.     This was noted in a 2018 report by the Canadian Mental Health Association.  Prior to the establishment of a monitored injection site in Vesterbro, Copenhagen, Denmark in 2012, up to 10,000 syringes were found on the streets each week. Less than a year after the monitored injection site opened, that number dropped to less than 1,000.  Like Safehouse, Jesse Harvey sought to claim the protection of religious freedom by founding the Church of Safe Injection in Maine. After his death from a drug overdose, the organization received a relaxation of regulations from the governor of Maine and approval from the Maine CDC to operate as a licensed needle exchange in several cities (but not as a supervised injection site).  California`s second policy shift came when the Biden administration pursued “harm reduction strategies” – focused on keeping people who use drugs alive and safe, rather than punishing them. Needle exchange programs and programs that distribute naloxone, an overdose reversal drug, are some examples. 316 residents and 210 businesses conducted MSIC surveys in 2005.
The 2005 survey conducted by the New South Wales Department of Health in Kings Cross, New South Wales, Australia, found that 73% of residents (down from 78% in 2003) and 68% of business operators supported the presence of MSIC.  The analysis showed that residents without landlines were excluded from the survey. The reliability of these valuation surveys is questioned by a petition sent in 2010 by 63 business owners to the New South Wales Parliament to move the facility to another location as it affected their business.  There have been some attempts to standardize assessment reports at supervised injection sites into some sort of core result set available to U.S. researchers funded by the Drug Policy Alliance;  However, the intermediate process of how this consensus was generated is not published. The legality of supervised injection is dealt with from state to state. New South Wales tested a monitored injection site in Sydney in 2001, which was made permanent in 2010.  Victoria also opened a supervised injection site in Melbourne on a trial basis in 2018; In 2020, the study was extended for three years and a second site was approved.  A longitudinal study – Urban Social Issues Study (USIS) – conducted in January 2018 and February 2019 – by Professor Em M. of the University of Lethbridge. Pijl and on behalf of the City of Lethbridge, Alberta, Canada, are investigating “all unintended consequences” of Supervised Consumer Services (SCS) within the “surrounding community.” :16 The USIS study was conducted in response to a drug crisis in Lethbridge that affected “many neighbourhoods in a variety of ways.” The researchers examined “perceptions and observations of social disruption by business owners and operators” in a neighborhood where SCS was introduced.
:16 The report warns that antisocial behaviour related to drug abuse has increased in Lethbridge in particular and in cities in general, as the “quantity and type of drugs in circulation” increases. As crystal meth use dwarfs opioid use, users exhibit “more erratic behavior.” .