An article by Cesare Parodi and Valentina Sellaroli, reported in Contemporary Criminal Law (6/2019), illustrates its possibilities and legal implications. In fact, predictive software has long been used in various cities around the world. Each has peculiar characteristics, but there is a common trend: they focus on a purely statistical analysis, aimed at indicating the place and time when, most likely, a crime may occur. KeyCrime’s delia® suite, instead of relying on mere statistical analysis and broad-based data collection, evaluates the risk of repeat offenses within a specific crime series based on direct and objective data from that series.