Modern Principles of Criminal Law

Abstract

The article examines certain modern principles of Criminal Law, with the aim of demonstrating their usefulness as interpretive criteria for delimiting the scope of criminal norms in light of social transformations and the need for a fairer application of the law. It adopts a legal-doctrinal methodology based on the analysis of theoretical constructions of criminal dogmatics, especially the principles of social adequacy, insignificance, and reliance, drawing on both foreign and Brazilian authors as well as on a judicial example involving a negligent traffic offense. It argues that social adequacy excludes from criminal typicity conduct that is formally subsumable under a statutory offense but materially accepted as normal by society; that the principle of insignificance removes from criminal relevance minimal injuries to legal interests for lack of sufficient harmfulness; and that the principle of reliance, applied particularly to negligent offenses, limits the objective duty of care by allowing the agent, as a rule, to rely on the proper conduct of third parties. The article thus shows that criminal interpretation cannot be confined to formal subsumption, but must also consider the protective purpose of legal interests and the concrete reality of human conduct. It concludes that these principles operate as indispensable instruments for rationalizing criminal justice, allowing socially tolerated, insignificant, or conduct lacking legally relevant negligence to be excluded from the sphere of criminal unlawfulness.