The Design of a Spatio-Temporal Database to Investigate on Sex Offenders

Sex offenders have a high recidivism rate. Fight against recidivism is, therefore, a relevant issue. Recent laws call for the use of the GPS technology to monitor the whereabouts of sex offenders. In the paper, we design a Spatio-temporal database suitable to store the trip of criminals as moving points that is as time dependent geometries. This opens the frontier to a new generation of software applications much more effective than those currently used by several criminal investigation departments all over the world.