“…There is contradictory evidence about the role of rule adherence as a factor for substance abuse (Alterman et al, 1980(Alterman et al, -1982. There is also some evidence that substance abuse in inpatients is related to START outcomes including aggression (Alterman et al, 1980(Alterman et al, , 1981(Alterman et al, , 1982, self-harm (Kamali et al, 2000), and unauthorised leave (Bowers et al, 2003); as a result, further advances on development of items for these outcomes holds the potential to improve the predictive ability of the items for substance abuse. Both outcomes considered in the current study represent failures of security, particularly of procedural and relational elements.…”