RT Article T1 Effectiveness of CCTV systems as a crime preventive tool: evidence from eight Polish cities JF International journal of comparative and applied criminal justice VO 47 IS 1 SP 37 OP 56 A1 Matczak, Piotr A2 Wójtowicz, Andrzej A2 Dąbrowski, Adam A2 Leitner, Michael A2 Sypion-Dutkowska, Natalia LA English YR 2023 UL https://krimdok.uni-tuebingen.de/Record/1832635171 AB Based on data from eight Polish cities, we tested if closed-circuit television (CCTV) monitoring systems are effective in crime reduction and if the CCTV monitoring effects are durable. In a quasi-experimental method, we applied police data about four types of crime incidents in 2005–2014 as well as camera location. A preventive effect appeared in 10 of 17 of analysed paired treatment/comparison areas. The overall mean effect appears modest. In two of four cases, the preventive effects were durable. The analysis proves that CCTV cameras in the Polish cities had a crime reduction effect and the effect is sensitive for the category of crime. The influence of CCTV on the fall in crime in Poland is unlikely. K1 Closed-circuit television K1 CCTV K1 Crime Reduction K1 Poland K1 Crime Prevention DO 10.1080/01924036.2021.1976237