Legal sanctions alone are often ineffective in preventing stalking because, in the absence of treatment, the fundamental problems driving the stalker remain unresolved. Criminal justice interventions can be problematic because of difficulties in framing anti-stalking legislation and inconsistencies in their application. Civil remedies in the form of restraining orders may be ineffective or counterproductive. Treatment of stalkers involves pharmacotherapy when mental illness is present, but the mainstays of treatment for non-psychotic stalkers are programmes of psychological intervention. These depend on accurate assessment of the risks inherent in stalking and on the identification of psychological deficits, needs, and responsivity factors specific to the individual. Treatment can then be tailored to suit the stalker, thereby enhancing therapeutic efficacy. Developing a framework for identifying the risk factors and shaping the delivery of treatment is crucial. Two service innovations developed specifically to work with stalkers are presented as options to overcome current management deficiencies.