Supervised injection sites (SIS) (also known as supervised injection facilities, safe injection site safer injection facility (SIF), drug consumption facility (DCF) or medically supervised injection center (MSIC)) are legally sanctioned and medically supervised facilities designed to reduce nuisance from public drug use and provide a hygienic and stress-free environment for illicit drug users when consuming drugs, mostly injecting drug use.They are part of a harm reduction approach towards drug problems.