Police and forensic scientists analyse CCTV video when investigating criminal activity. The repetitive and patterned nature of sports games lends itself to video analysis in that over a period of time real patterns, trends or habits can be discerned. The objective is to improve individual and team performance and/or analyse opposition patterns of play to give tactical advantage. In sport, systems have been developed to provide a high level of task, performance and physiological data to coaches, teams and players. Recently, computer technology has allowed other applications of video motion analysis to surface including things like teaching fundamental laws of physics to school students, or general educational projects in sport and science. Traditionally, video motion analysis has been used in scientific circles for calculation of speeds of projectiles, or in sport for improving play of athletes.