"The effectiveness of drug consumption facilities to reach and stay in contact with highly marginalised target populations has been widely documented (Hedrich et al., 2010; Potier et al., 2014). This contact has resulted in immediate improvements in hygiene and safer use for clients (e.g. Small et al., 2008, 2009; Lloyd-Smith et al., 2009), as well as wider health and public order benefits.
"Research has also shown that the use of supervised drug consumption facilities is associated with self-reported reductions in injecting risk behaviour such as syringe sharing. This reduces behaviours that increase the risk of HIV transmission and overdose death (e.g. Stoltz et al., 2007; Milloy and Wood, 2009). Nevertheless, the impact of drug consumption rooms on the reduction of HIV or hepatitis C virus incidence among the wider population of injecting drug users remains unclear and hard to estimate (Hedrich et al., 2010; Kimber et al., 2010), due in part to the facilities’ limited coverage of the target population and also to methodological problems with isolating their effect from other interventions.
"Some evidence has been provided by ecological studies suggesting that, where coverage is adequate, drug consumption rooms may contribute to reducing drug-related deaths at city level (Poschadel et al., 2003; Marshall et al., 2011). A study in Sydney showed that there were fewer emergency service call-outs related to overdoses at the times the safe injecting site was open (Salmon et al., 2010).
"In addition, the use of consumption facilities is associated with increased uptake both of detoxification and drug dependence treatment, including opioid substitution. For example, the Canadian cohort study documented that attendance at the Vancouver facility was associated with increased rates of referral to addiction care centres and increased rates of uptake of detoxification treatment and methadone maintenance (Wood et al., 2007; DeBeck et al., 2011).
"Evaluation studies have found an overall positive impact on the communities where these facilities are located. However, as with needle and syringe programmes, consultation with local key actors is essential to minimise community resistance or counter-productive police responses. Drug treatment centres offering supervised consumption facilities have generally been accepted by local communities and businesses (Thein et al., 2005). Their establishment has been associated with a decrease in public injecting (e.g. Salmon et al., 2007) and a reduction in the number of syringes discarded in the vicinity (Wood et al., 2004). For example, in Barcelona, a fourfold reduction was reported in the number of unsafely disposed syringes being collected in the vicinity from a monthly average of over 13 000 in 2004 to around 3 000 in 2012 (Vecino et al., 2013)."
EMCDDA, "Perspectives On Drugs: Drug consumption rooms: an overview of provision and evidence," European Monitoring Centre for Drugs and Drug Addiction, June 2018.