Criminal Law

  • This Subject Area Index lists all CALI lessons covering Criminal Law.
  • The Criminal Law Outline allows you to search for terms of art that correspond to topics you are studying to find suggestions for related CALI Lessons.
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Duty to Retreat

This lesson covers the subject of the duty to retreat as a requirement for the justification defense of self-defense. The lesson reviews the common law and current status of the duty to retreat. This subject matter is not particularly complicated, but there are some details that require close scrutiny.

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Consent

This lesson explores the various ways in which the criminal law considers victim consent. Topics include consent as negating an offense element, consent as justification, effective consent, and limitations on consent as a defense.

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The Mens Rea of Attempts

This lesson is one of several addressing the offense of criminal attempt as set forth in the Model Penal Code. In this lesson, students consider broad concepts relating to the law of attempts, such as what mental state, if any, should be required for punishing an incomplete offense (with reference to theories of punishment) and how certain crimes not so labeled are actually particular kinds of attempt offenses. It then examines the mens rea for an attempted offense, highlighting the distinction between knowledge and purpose, and further distinguishing purpose as to conduct from purpose as to result.

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Suspendatur!

This exercise is designed as a review for students taking the basic first year course in criminal law. Suspendatur! (Latin for “let him be hanged”, the final entry in medieval plea rolls in capital cases) is patterned after the familiar game of hangman, in which each wrong answer adds a part to a stick figure on the gibbet. The student must answer multiple choice and true-false questions based on hypothetical situations. Each right or wrong answer provides substantive feedback in what aims to be at least a mildly humorous fashion.

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Accomplice Liability - Mens Rea

This lesson continues our discussion of accomplice liability. In a prior lesson, we examined how the common law and the Model Penal Code classified various types of accomplices. In another prior lesson, we examined the actus reus requirement for accomplice liability. In this lesson, we continue the discussion by focusing on the mens rea requirement for accomplice liability. The lesson is intended for students who have studied these issues in class, and who wish to refine their understanding and knowledge of the topic.

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Accomplice Liability - Actus Reus Requirement

This is one in a series of lessons on accomplice liability. In earlier lessons, we examined how accomplices were classified under the common law and the Model Penal Code. In addition, we examined the mens rea requirement for accomplice liability. In this lesson, we continue the discussion by examining the actus reus requirement of accomplice liability. This lesson is intended for students who have studied these issues in class, and who wish to further refine their knowledge and understanding of the topic.

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Accomplice Liability - Definitional Issues

At common law, a distinction was made between the perpetrator of a crime, and the perpetrator's accomplices. In this lesson, we examine the common law definitions that applied to accomplices, and modern approaches to complicity, including the Model Penal Code. This lesson is intended for students who have studied these issues in class, and who wish to refine their knowledge and understanding.

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Introduction to Homicide

This lesson provides a basic overview of the law of homicide. It is an introductory lesson to get you started on distinguishing criminal from noncriminal homicide, identifying the elements of homicide, and analyzing the varying degrees of homicide. The lesson guides you through applying the basic concepts of actus reus, mens rea and causation to homicide offenses and provides an analytical framework for approaching homicide problems. Finally, it provides separate practice questions and an opportunity to try out the problem-solving approach on an exam-type question.

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Homicide (Causation)

This is one of a series of lessons on homicide, and one of two lessons on the issue of causation in homicide cases. While some crimes require only a prohibited act, with the necessary mental state, other crimes are referred to as "result" crimes. In other words, in order to be convicted, the defendant must "cause" a prohibited result (with the required mens rea and with proof of required attendant circumstances). Homicide is the quintessential result crime in that defendant must have "caused" the death of another in order to be convicted. In this lesson, we explore the concept of causation (both actual and legal) in an effort to determine when, and under what circumstances, a defendant should be criminally accountable for the death of another. This lesson is intended for students who have studied these issues in class, and who wish to refine their knowledge and understanding of the topic.

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Homicide (Causation - Part II)

This is one of a series of lessons on homicide, and one of two lessons on the topic of causation as applied in homicide cases. Although some crimes require only a mens rea and an actus reus (and, perhaps, an attendance circumstance), other crimes are "result" crimes in that they also require proof that defendant "caused" a particular result. Homicide is the quintessential result crime. This lesson builds on an earlier lesson dealing with causation in homicide cases by focusing on the Model Penal Code's approach to causation. This lesson is intended for students who have studied the MPC's causation provisions in class, and who wish to refine their understanding of the topic.

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Homicide (Defining Death and Life)

This is one of a series of lessons on homicide, and it examines the definitions of "death" and "life" for purposes of the law of homicide. Homicide is a "result" crime in that defendant must have caused the death of another person, and questions necessarily arise regarding when life begins and when life ends. In this lesson, we explore questions related to the definition of death and life in the law of homicide. This lesson is intended for students who have studied these issues in class, and who wish to refine and enhance their knowledge of the topic.

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Homicide (Murder)

At common law, as well as under modern statutory codes, the crime of homicide was (and is) divided into various component crimes. In addition to the crime of murder, the most serious crime, there are other crimes (e.g., voluntary manslaughter, involuntary manslaughter, etc.). This lesson provides an overview of the crime of murder by examining how that crime was handled under the common law, as well as how it is handled under the Model Penal Code, and other modern statutory approaches. Subsequent lessons will provide more detailed examination of these topics. This lesson is intended for students who have studied the crime of murder in class, and who wish to refine and enhance their knowledge and understanding of the topic.

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