“…Irrespective of differences in design and methodology, several population-based studies were able to consistently link child and adolescent conduct problems to later criminal outcomes in adulthood [4,8,10,15,16,22,29,36,39,44,51]. Another risk factor was substance abuse, with community-based studies reporting that early drug use, including alcohol use, were related to later criminal outcomes [5,10,21,51].…”