Developmental and life-course criminology are both worried with the study of changes in criminal and unruly manners over time. Although these two theoretical methods share some mutual features, they also differ in the concepts that they deem to be of focal concern. The life-course viewpoint gives better importance to social structure, whereas the developmental method generally tends to emphasis more on psychological issues to explain progressive processes. In many instances, these two approaches have been engaged in the context of similar studies but with slightly different focuses. Many of the issues addressed in criminal career research are also appropriate to developmental and life-course criminology (“Developmental and life-course criminology
