ARCHES is a non-profit organization based in Lethbridge, Alberta, that works to reduce the harm associated with HIV/AIDS and Hepatitis C, known for operating the province-funded Lethbridge Supervised Consumption Site from February 2018 until closing in August 2020. ARCHES started in 1986, specifically focused on helping the gay community. Over time, ARCHES became a community-based organization. The SCS it operated was the busiest drug consumption site in North America. It decided to close the site following the withdrawal of government funding after an initial audit found evidence of various misappropriation of funds and lack of accounting for more than a million dollars of its funding. The concerns around unaccounted funds were investigated by Lethbridge Police Service Economics Crimes Unit, which located the missing financial records, resulting in no criminal charges.