Operational psychology describes a way of working within organisations
to make them more psychological in approach. By this method psycholog
ists work with operational staff in developing ideas in a psychologica
l way, thereafter spreading them to the wider organisation. As an exam
ple, this paper describes an establishment-wide assessment and treatme
nt system for violent offenders under the broad categories of angry ag
gression/incentive motivated aggression and the sub-divisions of frequ
ent or infrequent occurrence, based on behaviour observation by staff
Identification of treatment need is derived from the model, and behavi
oural observation as a method of evaluation of treatment effectiveness
is described, with preliminary pilot study data. The extended use of
the system to the national risk assessment/life sentence planning proc
ess demonstrates the feasibility and practical application of the appr
oach.