Most statistics are based on police reports, not convictions. For crimes other than murder, there is a good agreement between police reports and surveys of victims.
Conviction data has a bias introduced by the the court, but it has a much worse bias from restricting to cases where a suspect is identified and apprehended.
Most statistics are based on police reports, not convictions. For crimes other than murder, there is a good agreement between police reports and surveys of victims.
Conviction data has a bias introduced by the the court, but it has a much worse bias from restricting to cases where a suspect is identified and apprehended.