This thesis examines the nature of ‘gaming’ in the police service and the extent to which it distorts policing priorities and performance measures. Performance Management, which formed an integral part of New Public Management, was introduced gradually to the police service in England and Wales during the 1990s. The Police and Magistrates Court Act 1994 gave Chief Officers of Police greater freedom on how they spent their budget allocation but there was an expectation that this would result in increased efficiency and improved performance. The Police Reform Act 2002 continued this trend by empowering the Home Secretary to set annual performance targets which the Police Service was expected to deliver. Performance management systems provided the means by which efficiency could be measured thus enabling central government to exert pressure on police forces to improve performance in the areas prioritised. However, for such improvements to be real, not just illusory, it was necessary to ensure the dysfunctional effects of ‘gaming’ behaviour were guarded against. Controlling such behaviour presents a challenge for those responsible for the regulation and governance of the service. This thesis examines the impact of Performance Management on ‘gaming’ behaviour and vice versa within the police service. It identifies and presents evidence on the nature and extent of ‘gaming’ and its impact on police behaviour. The limited effectiveness of the regulatory bodies in addressing ‘gaming’ are also reviewed and inadequacies, both strategic and operational, identified.