The Sydney based Uniting Medically Supervised Injection Centre prepared an exhaustive, easy to read overview of scientific & grey literature that would facilitate scholars and advocates working in this area:
Overview of International Literature – Supervised Injecting Facilities & Drug Consumption Rooms (Issue 1: Aug 2017)
The document includes evidence of SIF/DCR effectiveness in regard of attracting high risk drug users, managing overdose and decrease overdose-related mortality, enhancing safe injecting practice, decreasing public drug use and improve public amenity and more.
The Greek organisation Kethea questions the establishment of drug consumption rooms in that country and states, that there is no evidence about the effectiveness of those facilities.
Read an answer of IDPC, providing information about the legal and scientific context.