CHAPTER FIVE
CRIMINAL RESPONSIBILITY AND THE CAPACITY TO
COMMIT A CRIME
Learning Objectives
After reading this chapter, students will be able to:
1. Learn when a child can be held responsible for violation of a criminal law.
3. List the two prongs of the M’Naghten Rule.
5. Describe the difference between the M’Naghten Rule and the “substantial capacity” test.
7. Distinguish the “not guilty by reason of insanity” verdict from the verdict of “guilty but
mentally ill” verdict.
9. Explain why a defendant of questionable competency should not be tried for a criminal
violation.
Lesson Plan
Correlated to PowerPoints
I. Ancient concepts of criminal responsibility
Learning Objective 1: Explain when a child can be held responsible for violation of a criminal
law.
Learning Objective 2: Distinguish between the method of imposing criminal liability upon a
child under age seven, and a child of age fourteen.
A. Past determination of criminal responsibility: Trial by ordeal and by battle
1. Torture imposed with hope of miraculous deliverance
2. Accused is guilty if he or she comes in second they lose the fight
B. Today criminal responsibility and capacity are generally seen as potential excuses
for the commission of acts that would ordinarily be criminal, as opposed to
defenses to criminal liability.
C. Preponderance of the Evidence: Level of proof that generally inclines a person
to believe one side of an issue than another.
2. Most states require that defense proof insanity by this level of proof.
3. The Supreme Court held in Atkins v. Virginia, that a mentally retarded
person could not be subject to the death penalty.
D. Presumptions about sanity
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2. In the case of adults, in most states a defense of insanity requires the
defendant to prove insanity by a preponderance of the evidence.
3. In only a very few states the prosecution must prove the presence of capacity
or sanity, usually beyond a reasonable doubt. While many state statutes only
require proof by a preponderance of the evidence, others require proof by
clear and convincing evidence.
E. Infancy and Criminal Responsibility
Class Discussion/Activity
Discuss the methods used to impose criminal liability on children under
the age of seven and between ages seven and fourteen. Should the methods
be different?
1. Under the civil law, an infant (child) is a person who has not yet reached the
3. Many states have codified some version of the common law rules on
childrens criminal capacity, though they vary on the age limits adopted.
4. People over a certain agein most states, around fourteen years of ageare
5. A rebuttable presumption exists under most state statutes and the common law
that children between the minimum age (usually around seven) and the
maximum age (usually around fourteen) are presumed to be without criminal
capacity to commit a crime.
a. This presumption may be overcome by the presentation of evidence
by the state showing that the child has the mental capacity and the
ability to formulate the necessary criminal intent.
b. The U.S. courts look to a variety of factors when the capacity
presumption is at issue, and they usually hold that the younger the
child, the stronger must be the evidence of mental capacity.
F. The Juvenile Court System
1. All states have enacted statutes governing the jurisdiction of childrens
3. States vary on the maximum age for the jurisdiction of juvenile courts but
usually set a limit around eighteen years of age.
4. State statutes also generally provide that juvenile courts may waive
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Copyright © 2018 Cengage Learning. All Rights Reserved.
the juvenile court.
5. Waiver
II. The Insanity Defense
Media Tool
Judge Accepts James Holmes’ Insanity Plea
http://video.foxnews.com/v/2434176103001/judge-accepts-james-holmes-
insanity-plea/
o Provides a video discussing the legal impacts of an insanity plea.
o Discussion: What are the effects of an insanity plea according to
the video? Do you agree with the statements in the video? Why
are so few insanity pleas successful? What factors are important
in the Colorado statute?
A. Criminal Incident: Foucha v. Louisiana: the State must establish insanity and
dangerousness by clear and convincing evidence in order to confine an insane
convict beyond his criminal sentence, when the basis for his original confinement
no longer exists.
B. Insanity Tests
o M’Naghten rule: cognitive and moral incapacity
o “substantial capacity”: volitional incapacity
o “product” rule: product of mental illness
What If Scenario
A recent murder trial has resulted in a child murderer being found not guilty by reason of
insanity. The resulting public outcry has motivated the passage of legislation eliminating the
insanity defense in your state. Examine similar changes in other states to answer the following
questions. What impact will this change have on the murder rate in your state? What impact
will this change have on incarceration rates in your state? How will this change affect murder
trials in your state?
C. The insanity defense is most often used in murder cases and for other serious
felony charges.
D. Not an easy way out for criminal defendants.
E. Only about 2 percent of defendants charged with serious crimes use the insanity
plea.
F. In most jurisdictions the burden is on the defendant to prove the insanity defense,
usually by a preponderance of the evidence.
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What If Scenario
Your state legislature has decided to change the law regarding the insanity defense. Previously,
the burden was on the defendant to prove insanity. The new law requires the prosecutor to
prove sanity. How would this affect prosecutions? What impact would it have on trials in your
state? Would it have an effect on plea bargains?
G. Insanity at the Time of the Criminal Incident
1. If a defendant is found insane at the time the crime occurred, a judgment of
not guilty by reason of insanity is then entered by the court, and the defendant
may never again be tried for that offense.
a. Almost always committed to a mental institution
b. Foucha v. Louisiana
c. The holding in Foucha, where the State conceded the defendant was
no longer insane, should be contrasted to the burden of proof
required for the release of a person committed after a finding of not
guilty by reason of insanity.
III. Tests used to determine insanity Assignment Number 1, 2, 3, 4
Learning Objective 3: List the two prongs of the M’Naghten Rule.
Learning Objective 4: Describe the difference between the M’Naghten Rule and the
“substantial capacity” test.
Learning Objective 5: Identify the extent, if any, to which the voluntary use of drugs or alcohol
may be used as an insanity defense or diminished capacity defense.
Class Discussion/Activity
What are the different tests for determining insanity? Which is the “best”
test? Why?
A. If a state permits a defense to criminal charges based on insanity, it remains to be
determined how the insanity decision is made.
1. Clark v. Arizona, 126 S. Ct. 2709 (2006)
B. The M’Naghten case and the “Right and Wrong” Test
1. An insanity test that claims that defendants are not legally responsible for their
acts if, due to a defect of the mind, at the time of the crime they were unable
to understand the difference between right and wrong.
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(the jurys) satisfaction; and that to establish a defense on the ground
of insanity, it must be clearly proved.
C. The “Product-of-Mental-Illness” Test and “Irresistible Impulse”
1. Many courts critical of the M’Naghten rule
a. Narrow and restricted application
2. In response to this criticism, a few states adopted a form of volitional
4. Insanity Defense Reform Act, 18 U.S.C. § 17
D. The Model Penal Code Substantial Capacity Test
1. A test to determine criminal responsibility based on whether the defendant
3. Idaho, Montana, Kansas, Nevada, and Utah have abolished the insanity
defense.
E. The plea and verdict of guilty but mentally ill
Media Tool
Woman Accused Of Killing Daughter In Murder-Suicide Attempt
http://www.ksl.com/?nid=148&sid=19674412
o Provides a video and article about a woman who attempted to kill
herself and her daughter and pled guilty but mentally ill when
charged with the crime.
o Discussion: What are the important factors regarding this case?
What burden does the defendant have in pleading guilty but
mentally ill? Is this an appropriate defense for the case?
1. A defendant may be found guilty but mentally ill if all the following are found
2. In most states, the statute authorizing a GBMI verdict allocates the burden of
3. Opponents of the guilty but mentally ill verdict argue that it is nothing but a
nice name for guilty and going to prison.
4. Designed to protect the public
IV. Mental conditions that do not satisfy the insanity defense
A. Many mental conditions do not rise to the level of insanity and thus do not
provide a defense to criminal conduct.
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2. The voluntary use of drugs or alcohol does not qualify as a mental disease nor
does compulsive gambling.
V. The defense of diminished capacity Assignment Number 3
Learning Objective 6: Distinguish the “not guilty by reason of insanity” verdict from the
verdict of “guilty but mentally ill” verdict.
A. The diminished capacity defense applies when a defendant has introduced evidence
of mental incapacity that does not satisfy the requirement for a finding of insanity
under the relevant statute.
B. Whereas following a successful legal insanity defense the court retains control of the
defendant and may order involuntary commitment, a successful diminished capacity
defense results in a complete acquittal of the crime charged.
VI. The requirement of competency to stand trial Assignment Number 3
Learning Objective 7: List factors that may present issues of a criminal defendant’s
competency to be tried on criminal charges.
Learning Objective 8: Explain why a defendant of questionable competency should not be tried
for a criminal violation.
What If Scenario
In a recent case the Supreme Court has determined that it is no longer necessary to determine
competency prior to trying a defendant. How would trials change as a result? What impact
would such a change have on the civil rights of defendants? Why is this issue important? Who
would be impacted by this change?
Class Discussion/Activity
Why is it important that a defendant be “competent” to stand trial? Should
the government be allowed to force a defendant to take medication to
make him/her competent to stand trial? What are the rules in your state for
determining competency?
A. Defendants must have the ability to cooperate with their attorneys and the ability to
understand the charges and proceedings against them.
1. The standard of proof on defendants to prove incompetency is that of the
preponderance of the evidence.
2. A criminal defendant found to be incompetent might remain so for a short
time, or indefinitely.
VII. The criminal liability of corporations Assignment Number 5
Class Discussion/Activity
What is the purpose of making corporations liable for the actions of their
employees? What kinds of crimes are appropriate to hold corporations
criminally liable? Are there any crimes for which corporations should
not/cannot be held liable? What crimes?
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What If Scenario
Following a great deal of debate in the media the Supreme Court has ruled that corporations
are not people and are thus no longer criminally liable for the actions of their employees. What
effects would be seen as a result of such a ruling? Consider the impacts on white collar crime,
organized crime, and environmental crime.
A. The rules for making corporations liable for actions taken by officers, directors, or
employees
B. Corporations can be vicariously criminally liable for actions of their agents if the
offense is minor, a duty is specifically assigned to a corporation, a statute explicitly
creates vicarious criminal liability, or the person committing the crime is acting in the
interest of the corporation and is a high managerial agent.
Media Tool
Corporate Vicarious Criminal Liability
http://www.youtube.com/watch?v=MUtYW5d9_mw
o Provides a brief explanation of corporate vicarious criminal
liability and discusses the problems and the alternative of
corporate compliance programs.
o Discussion: After watching the video, which is better…to
prosecute corporations for the criminal actions of their employees
or to allow corporate compliance programs? What factors should
be considered in determining which is appropriate in a situation?
C. Corporate liability for environmental crimes
2. These statutes usually are aimed at some harm that an environmental interest
suffered based on actions of the corporation.
3. Attaching criminal liability for those actions can be unclear.
Lecture Notes
The defenses of insanity, diminished capacity, and age are considered legitimate excuses for
criminal behavior that reduce or entirely eliminate the defendant’s blameworthiness. The
criminal law is designed to punish only those who are truly blameworthy for their conduct.
involve strict liability. Often people will comment that a person must have been crazy to have
committed such a horrible, despicable act, but being crazy is not the same as being insane.
This might be a good time to introduce students to the civil commitment process in their state,
since a successful insanity defense generally results in such a commitment. Involuntary civil
commitment only occurs according to a strict set of procedures with the person being protected
defendant’s condition. In many states, however, expert testimony isn’t required on the insanity
issue. Testimony from individuals who can describe the defendant’s behavior and his or her
statements before, during, and after the crime was committed, can be used to try to persuade the
fact finder as to the defendant’s mental status. Just how much evidence is required on the
insanity defense will differ from jurisdiction to jurisdiction. Some states use the reasonable
doubt standard; others use the preponderance of the evidence standard. Who carries the
burdenthe state to prove sanity or the defendant to prove insanityalso differs from
jurisdiction to jurisdiction.
Key Terms
trial by ordeal A test used to determine criminal responsibility in ancient England involving
subjecting the individual to a torturous ordeal. These ordeals were essentially appeals to God;
surviving the ordeal was viewed as Gods judgment of innocence. (p. 112)
preponderance of the evidence The greater weight of the evidence, though not necessarily the
amount needed to remove every reasonable doubt. It is proof sufficient to incline a reasonable person
toward one side of an issue rather than the other. (p. 113)
Copyright © 2018 Cengage Learning. All Rights Reserved.
that age is eighteen, nineteen, twenty, or twenty-one, as determined by the law of each jurisdiction.
(p. 113)
insanity tests Tests to determine legal and moral liability. (p. 116)
“right and wrong” test An insanity test that claims that defendants are not legally responsible
for their acts if, due to a defect of the mind, at the time of the crime they were unable to understand
the difference between right and wrong. (p. 118)
M’Naghten rule The insanity defense rule requiring proof that because of mental disease or
defect defendants did not know the scope or character of their actions. (p. 118)
“substantial capacity” test A test to determine criminal responsibility based on whether the
defendant could (1) distinguish between right and wrong or (2) conform his or her conduct to the
requirements of law. (p. 120)
guilty but mentally ill A defendant may be found guilty but mentally ill if all the following are
found beyond a reasonable doubt: (1) defendant is guilty of offense; (2) defendant was mentally ill at
time offense was committed; (3) defendant was not legally insane at time offense was committed. (p.
121)
diminished capacity defense A defense for criminal responsibility based on the fact that because
of mental or emotional conditions, the defendant did not possess the required mens rea for
conviction of crime charged. (p. 125)
competency to stand trial Defendants must have the ability to cooperate with their attorneys and
the ability to understand the charges and proceedings against them. (p. 128)
criminal liability of corporations The rules for making corporations liable for actions taken by
officers, directors, or employees. Corporations can be vicariously criminally liable for actions of
their agents if the offense is minor, a duty is specifically assigned to a corporation, a statute
explicitly creates vicarious criminal liability, or the person committing the crime is acting in the
interest of the corporation and is a high managerial agent. (p. 130)
Assignments
1. Compare and contrast the Durham and substantial capacity insanity tests with the
M’Naghten test. Which test makes it more difficult for a defendant to prove in court?
2. Students should compare their state’s insanity laws with the M’Naghten test and
substantial capacity test found in the Model Penal Code. What is the burden of proof for
the defense and who carries the burden? Should decisions about whether a defendant is
not guilty by reason of insanity be made by a jury, a judge, or a panel of experts? [LO 3,
3. Students can break up into groups. Have each group research a current insanity defense
from their local news media. Have each group prepare a PowerPoint presentation
4. In groups or as an individual assignment have students examine a state with involuntary
5. In groups or individually, have students brief the cases in the chapter related to the
Case Analysis and Writing Exercises
1. Can a defendant prevent a court from entering a verdict of “Guilty but Mentally Ill”
(GBMI)? Assume a defendant is charged with attempted murder. While there is
2. Many states bifurcate the guilt/insanity portions of a trial, so that a jury first must
determine beyond a reasonable doubt that a defendant is guilty of committing the
crime charged. If a guilty verdict is returned, the second phase begins. In some states
the burden remains on the state to prove sanity, but more commonly it becomes the
defendant’s duty to prove insanity. In those states, must the defendant always
introduce medical evidence of mental illness? Or can lay testimony be sufficient?
Copyright © 2018 Cengage Learning. All Rights Reserved.
N.W.2d 42 (Wis. 2014). The defendant testified he could not remember the criminal
incident (attack on prison guard) because he was unconscious, and thus in his
unconscious state he lacked the substantial capacity to appreciate the wrongfulness of
his conduct. Why did the Wisconsin Supreme Court find this evidence insufficient?
3. When the Pennsylvania legislature passed its Juvenile Act, setting procedures for
juvenile courts, it abolished the infancy defense. Does that mean there is no infancy
defense in adult courts? That was the position of the state in Com. v. Martz, 118 A.3d
1175 (Pa. Super. 2015). Was it correct? What did the state contend based on the age
4. Assume a defendant is convicted of murder under a state felony-murder statute. (See
Chapter 10) The underlying crimes were rape and burglary. The defendant contended
he was “high” on Quaaludes and alcohol and had no memory of committing the
crime. Assuming the state had a “diminished capacity” defense available at the time
the crime was committed (California subsequently abolished the defense), what mens