Chapter 3: The Criminal Law in the U'S' - PowerPoint PPT Presentation

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Chapter 3: The Criminal Law in the U'S'

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Chapter 3: The Criminal Law in the U.S. ... Harmful act (actus reus) Criminal intent (mens rea) 4) Basic concepts & principles: (continued) ... – PowerPoint PPT presentation

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Title: Chapter 3: The Criminal Law in the U'S'


1
Chapter 3 The Criminal Law in the U.S.
  • The work of the Criminal Justice system is
    determined by the criminal law
  • Orienting Questions
  • What does the criminal law involve (in U.S.)?
  • Where does criminal law come from?
  • How is it changed and modified?
  • What are its basic concepts and principles?

2
1) What does criminal law involve?
  • Note different types of legal controls (over
    behavior)
  • Criminal Law (wrongful acts against community)
  • Civil Law
  • Torts (wrongful acts between individuals)
  • Administrative law (of individual-community
    relations)
  • Regulatory law (of business commerce)
  • Juvenile law
  • Note criminal law is a political construction
    (expressed in legal codes)

3
1) What does criminal law involve? (continued)
  • Divided into two basic Components
  • Substantive Criminal Law
  • Specifies the offenses (what counts as a crime)
  • Specifies the punishments (level of condemnation)
  • Procedural Criminal Law
  • Specifies how offenders are to be investigated,
    accused, adjudicated, sentenced, and punished.
  • Specifies the procedures and criteria by which
    these processes are to take place

4
1) What does criminal law involve? (continued)
  • Recognizes different levels of criminal offenses
    by seriousness
  • Felonies (Major crimes)
  • Misdemeanors (Minor crimes)
  • Infractions/Petty Offenses (near-crimes)
  • Other categories? (by scale or magnitude)
  • Treason Terrorism Organized Crime (RICO)
  • These imply different procedures punishments by
    level

5
1) What does criminal law involve? (continued)
  • Where is the Criminal Law located?
  • Constitutional Law
  • Found in fundamental or charter documents
  • Mainly sets limits on criminal law
  • Statutory Law
  • Main criminal law located in the Criminal Codes
  • Comes from legislative enactments and laws
  • Case Law
  • From judicial decisions (mainly appellate)

6
1) What does criminal law involve? (continued)
  • U.S. Not a single CJ system but 51 independent
    systems -- 50 states federal
  • States and federal governments separate
    sovereignties
  • Legal jurisdictions are substantially separate
  • Why so many different legal systems?
  • The U.S. was created as a confederation of
    states (with a weak central government)
  • Shift over time toward more federalization
  • But basic premise of state sovereignty remains

7
2) How did the criminal law develop?
  • Note evolutionary nature of U.S. legal system
  • Historical roots of U.S. Criminal Law
  • Ancient legal systems Babylonian, Hebrew, Roman
  • Germanic legal traditions (Wergild system) gt
    compensation for wrongs against tribes and clans
    to maintain local peace
  • Early English law collection of local systems
    scattered kingdoms
  • English Common Law
  • Unified politically under William the Conqueror
    (11th C.)
  • Unification of law under Henry II (written law)
  • Law imposed and enforced by Circuit Justices
  • Development of common law by Judicial decisions
    (principle of stare decisis)

8
2) How did the criminal law develop? (cont.)
  • Development of Criminal Law in American Colonies
  • Adoption of common law tradition/procedures
  • Emphasis on local autonomy
  • Ambivalence about strong central legal system
  • Formation of U.S. as separate nation
  • Retention of States sovereignty legal systems
  • Limited authority/jurisdiction granted to federal
    government
  • Greater codification of law
  • but continued reliance on stare decisis

9
3) Criminal Law in the U.S. How does it change?
  • Constitutional Amendments
  • Legislative changes to criminal codes
  • may add, modify, repeal statutes
  • overhaul or replace the codes?
  • Judicial decisions
  • That interpret, apply, or reinterpret the law in
    specific cases

10
4) Basic concepts principles of U.S. criminal
law?
  • due process applying ideas about fundamental
    fairness to limit the law
  • Substantive due process
  • Procedural due process
  • Legal definition of a Crime willful and harmful
    act that violates a criminal law and in
    punishable by the state. Components
  • Explicit law jurisdiction
  • Harmful act (actus reus)
  • Criminal intent (mens rea)

11
4) Basic concepts principles (continued)
  • Note that criminal defenses generally focus on
    some aspect of the legal definition of a Crime
  • May be either lack of harmful act or lack of
    criminal intent
  • Harmful act action outcome causal link
  • Criminal intent knowledge volition
  • (action is knowing and willful)
  • Justifications for acts lack of free will or
    choice due to external circumstances
  • Excuses for acts lack of knowledge or
    self-control due to internal factors

12
4) Basic concepts principles (continued)
  • Example of justifications for criminal act
  • Compulsion or necessity
  • Self-defense
  • Examples of Excuses for acts
  • Intoxication
  • Immaturity
  • Insanity

13
4) Basic concepts principles (continued)
  • The Insanity Defense as formal legal excuse
  • Lack of mens rea due to mental impairment or
    incapacity to exercise knowing, voluntary action
  • Elements of mens rea
  • cognition (knowledge or comprehension)
  • volition (self-control)
  • Legal issue of insanity may involve either (or
    both) of these elements
  • Legal issue of insanity may be a sane-insane
    dichotomy or a matter of degree of impairment

14
4) Basic concepts principles (continued)
  • Insanity Defense and NGRI verdict
  • Successful insanity defense results in a special
    verdict -gt Not Guilty by Reason of Insanity
  • Alternative would be mental impairment as a
    sentencing consideration (after conviction)
  • NGRI results in civil (rather than criminal)
    procedures for handling insane offender
  • Not used successfully very often, but a few
    spectacular cases have provoked public criticism

15
4) Basic concepts principles (continued)
  • Rules for invoking NGRI verdict
  • Wild Beast Rule (1723)
  • Irresistible Impulse Rule (1840)
  • MNaghten Rule (1843) (1851-US)
  • Durham Rule (NH-1868 US-1954)
  • Substantial Capacity Rule (1972-US)
  • Neo-MNaghten (current federal)

16
4) Basic concepts principles (continued)
  • Changing Defenses
  • Post-combat Stress
  • Post-partum Depression
  • Battered Woman defense
  • Twinkie defense (hypoglycemia)
  • Genetic anomaly defense

17
4) Basic concepts principles (continued)
  • Constitutional Limits on Criminal Justice
  • The Bill of Rights (1st Amendments)
  • Initially applied only to the Federal government
    (not to states)
  • Made applicable to the states through the 14th
    Amendment (in early 20th century)
  • Amendments relevant to Criminal Justice?
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