Within the current political climate, there is an increasing burden on mental health professionals to achieve accuracy in risk assessment and prediction. The accurate assessment and treatment of anger can make a valuable contribution towards alleviating this burden as part of a comprehensive treatment package. This study describes an anger management training programme provided to a group of three forensic inpatients with learning disability. An ABA single case study design was used, with anger levels assessed at weekly intervals before, during and after the programme. The results suggested that anger management training is useful with this client group, with established tools, such as the Novaco Anger Scale, the Spielberger State-Trait Anger Expression Inventory and the Modified Overt Aggression Scale, allowing the impact of the programme on anger levels to be evaluated. There is an indication that maintenance treatment is required to prevent anger levels increasing to pretest levels following treatment.