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numéro spécial dirigé par Pierre TremblayInternational audienceThe impact of cctv systems on crime rates has been more extensively researched in Great Britain than anywhere else. We offer, in this paper, a review of the findings of this systematic effort in evaluation research. The main finding is that a number of necessary conditions must be satisfied for a significant prevention effect to occur: first, an appropriate mobilization of resources invested in the experiments; second, a conceptually adequate specification of relevant, feasible and measurable target outcomes; third, a package of auxiliary but necessary treatment components; fourth, a thorough understanding of the unique ecological attributes of the experimental and control environments. A recurrent pattern in cctv and crime research is that these technological solutions are in fact sensitive to the implementation and actual management contingencies that shape their utilization.Cet article présente les principales observations formulées par les criminologues qui ont analysé l’impact de la vidéosurveillance sur la délinquance urbaine en Grande-Bretagne. Les stratégies d’évaluation utilisées par les chercheurs ont permis de montrer qu’il varie sensiblement selon le contexte d’implantation et d’exploitation des dispositifs techniques. Quatre conditions au moins doivent être réunies pour que la vidéosurveillance produise des effets : l’allocation de ressources suffisantes, la prise en compte de la configuration du tissu urbain, le soutien par d’autres mesures préventives et la définition de cibles pertinentes

La vidéosurveillance, une réponse efficace à la criminalité ?