Situational action theory -- The Peterborough Adolescent and Young Adult Development Study -- Young people's crime, crime propensity, and criminogenic exposure : key constructs and basic findings -- Peterborough, its urban structure, and crime -- Young offenders and their crimes in the urban environment -- Young people, their activities, and criminogenic exposure -- The crime convergence : kinds of people in kinds of settings -- Choosing crime as an alternative : crime propensity, the perception : choice process, and crime -- It's all about interactions