Police performance is not easily measurable and the organization and circumstances of police work vary among European countries. Further, police work is surrounded by multiple pressures to make it both economical and effective. Consequently, there are multiple institutional logics in decision-making which may affect the selection and the use of police key performance indicators (KPIs). The KPI selection and use processes reflect the institutional logics, though KPI use may also sometimes influence the institutional logics of police work. In this study we analyse the KPIs and institutional logics in police work in Finland and Spain. A comparative case research approach is used in order to highlight the differences in institutional logic emphases and in circumstances. Data from semi-structured interviews, internet reports, project work and discussions are used. Both similarities and differences in the KPIs and in the institutional logic emphasis are found between the Finnish and Spanish police. Understanding the partly general and partly locally constructed nature of institutional logics may facilitate the development of police work performance measurement. We also suggest ways of coping with multiple institutional logics. For example, risk-analyses and selecting KPIs against the current institutional logic may facilitate organizational developments.