Abstract
Emerging adulthood is a time of transition and identity development, largely between late adolescence and into early adulthood. During this period, individuals are navigating their new roles as adulthood ensues and, for some, antisocial behavior is part of this time period. This chapter highlights some of the main findings regarding the age–crime relationship, discusses some of the most central theories for understanding this relationship, and reviews the various punishment and rehabilitation strategies that have been applied to adolescent (and, very recently, emerging adulthood) offending. The authors identify gaps in the knowledge base, and possible avenues for both theoretical and empirical research are suggested.