Interactionism is not a theory but a group of concepts based on loosely related ideologies, postulating the interaction between societal forces and deviant individuals within a comprehensive sociological framework. This complex of multidisciplinary ideas is presented here through a summary of the views of an American sociologist (Arnold M. Rose), an American criminologist (Howard S. Becker), and a British radical theoretician (Dennis Chapman). The main themes of interactionism concern the creation and application of criminal law and the relationships of social groups and of individuals to the societal power structure. The more affluent and powerful members of every society are seen as immune to the sanctions of criminal justice establishments that reflect their interests and values. Accordingly, every society singles out deviants among the members of its lower socioeconomic strata and among the socially handicapped for criminal stereotyping and labeling, thereby channeling public hostility toward these powerless individuals, who become its ritual and symbolic scapegoats. Thus, a so-called criminal act results from the interaction among its perpetrator, its victim, the police, and the members of the judicial and correctional establishments. Individuals labeled as deviants and criminals are subjected to formal and informal social controls. Interactionism recognizes the formal controls as criminal laws, the police, the courts, and prisons, while the informal controls are the moral (i.e., symbolic) restraints, both self-imposed and those marketed by moral entrepreneurs of all political and ideological hues. The interactionist idea that crime and criminals have no absolute existence outside the artificial norms created by the powerful of society is rejected as absurd in this article. However, an interactionist contribution is recognized; the horizons of sociological and criminological research have been vastly analyzed through the hypothesis of a symbolic context for deviance which parallels the physical environment in which deviant acts occur. Although the concept emerged in the highly industrialized societies of the United States and Great Britain, interactionist insights can be applied to developing, chiefly agrarian countries such as Costa Rica. Continued research into the cultural, economic, social, and political criminogenic factors peculiar to Latin American locales must be pursued to complement the theoretical interactionist framework. Footnotes contain bibliographic citations and 29 references are appended.