Lesson: 28
Topic: Exceptions to Mens Rea Requirement
Objectives:
As we have learned in our previous lessons, the Crown must prove both mens rea (the guilty mind) and actus reus (the guilty act) in order to secure a conviction against the accused. In this lesson the student will learn that the guilty mind does not always need to be established for some certain infractions. To be sure, the state would rarely secure a conviction against speeders if the driver accused of speeding could just claim that they did not realize that they were traveling above the speed limit. For such circumstances, a theoretical classification of crimes exist wherein the state need not prove mens rea. Thus, proof of the act itself is enough to secure a conviction. These classifications are known as:
Method of Instruction and Evaluation:
Socratic lecture.
Expectations Addressed:
The "Criminal Law and Procedures" strand of the CLN4U Ministry of Education Curriculum Guidelines outlines all of the following specific expectations. By the end of this class, the student will be able to address those specific expectations that have been highlighted below.
Theories of Crime:
analyse the main theories that philosophers, psychologists, sociologists, and criminologists use to explain deviant behaviour;
explain the relationship between criminal law and morality and what is meant by “criminal conduct”;
explain the legal definition of a crime and the concepts of mens rea, actus reus, and strict and absolute liability;
explain the purpose of criminal law;
compare summary, hybrid, and indictable offences as they relate to criminal law.
The Criminal Trial Process:
explain the processes of police investigation, arrest, search, and interrogation of suspects;
explain pre-trial procedures, including plea bargaining and release procedures;
identify key features of the criminal trial process (e.g., burden of proof, admissibility of evidence, roles of the judge and courtroom personnel, selection and role of the jury);
outline legally acceptable defences to criminal conduct, and evaluate some of the more controversial defences (e.g., “battered spouse syndrome” defence; defence of diminished responsibility as a result of drunkenness);
evaluate the different types and purposes of sentences imposed in criminal law.
Concepts of Justice:
explain the concepts and principles of justice as they apply to criminal law (e.g., rule of law, presumption of innocence);
analyse situations in Canadian law in which principles of justice conflict (e.g., victims’ rights versus the rights of the accused);
analyse cases in which the principles of justice have been violated (e.g., the cases of Donald Marshall, David Milgaard, Guy Paul Morin, Roméo Phillion).
Resources:
Relevant web sites: