“…Skill development programmes for the intellectually impaired, such as positive behaviour support (Carr et al, 2002), are conceived in a more accessible way, but may need to be coupled with specific strategies to manage identified risks for escalation to violence (Gendreau, Little, & Goggin, 1996;Mullen & Ogloff, 2009;Quinsey et al, 2006). It has been our experience that multiple treatment techniques are needed that include challenging the distorted attitudes which have served to justify, minimise or deny the problem behaviour of threatening (Warren et al, 2005).…”