The 2011 Prisoner Escape Study, funded by the International Healthcare Security and Safety Foundation (IHSSF), investigates 99 reported forensic prisoner escapes from hospitals which took place from April, 2010 to April, 2011. A cross-sectional, exploratory study of prisoner escapes, the study follows up findings from the 2010 IHSSF Crime Study which indicated that members were concerned about the risks to hospital campuses and healthcare facilities that are en-gaged in the medical treatment of prisoner/forensics populations.