1. Criminal Investigation Unit 7 Lecture

2. Criminal Investigation: A Method for Reconstructing the Past 5th edition
By James W. Osterburg and Richard H. Ward
Copyright © 2007
Matthew Bender & Company, Inc., a member of the LexisNexis Group
Newark, NJ

3. (Osterburg & Ward, 2007, pp )
1.   What are the different types of homicides?

4. (Osterburg & Ward, 2007, pp )
(Accessed 10/7/09)
2.   What is the difference between a homicide and a suicide?

5. (Osterburg & Ward, 2007, pp )
3. How can a body provide evidence to the investigator?
(Osterburg & Ward , 2007, p. 386)

6. 4. How is Modus Operandi important in death investigations?
(Osterburg & Ward, 2007, p. 138)
(Osterburg & Ward, 2007, p. 211)
(Osterburg & Ward, 2007, p. 355)

7. Chapter 15
Homicide
Osterburg & Ward, 2007

8. Corpus Delicti: Two components
The “Body of the Crime”
Two components
1. That each element of the offense has been satisfied
2. That someone is responsible for inflicting the injury
(Osterburg & Ward, 2007, pp. 351 – 352)

9. Corpus Delicti
The collection of facts establishing that a crime has been committed
(Osterburg, 2007, pp )

10. Sec. 19.02.  MURDER
(1)  "Adequate cause" means cause that would commonly produce a degree of anger, rage, resentment, or terror
in a person of ordinary temper, sufficient to render the mind incapable of cool reflection.
(2)  "Sudden passion" means passion directly caused by and arising out of provocation by the individual killed or another acting with the person killed which passion arises at the time of the offense and is not solely the result of former provocation.
(b)  A person commits an offense if he:
(1)  intentionally or knowingly causes the death of an individual;
(2)  intends to cause serious bodily injury and commits an act clearly dangerous to human life that causes the death of an individual; or
(3)  commits or attempts to commit a felony, other than manslaughter, and in the course of and in furtherance of the commission or attempt, or in immediate flight from the commission or attempt, he commits or attempts to commit an act clearly dangerous to human life that causes the death of an individual.
(c)  Except as provided by Subsection (d), an offense under this section is a felony of the first degree.
(d)  At the punishment stage of a trial, the defendant may raise the issue as to whether he caused the death under the immediate influence of sudden passion arising from an adequate cause. If the defendant proves the issue in the affirmative by a preponderance of the evidence, the offense is a felony of the second degree.

11. Investigative Activities at Crime Scene
Record the crime scene
Collect and preserve physical evidence
Identify the victim
Establish cause, manner, and time of death
Osterburg & Ward, 2007

12. Ascertain the Motive for the Crime
Note the way the crime was committed
Interview family and associates of victim
Locate and examine documents
Osterburg & Ward, 2007

13. Who Does What? Pathologist v. Anthropologist
Forensic Pathologist:
Identifies victim
Estimates time of death
Establishes cause and manner of death
Forensic Anthropologist:
Searches crime scene
Documents physical evidence
Osterburg & Ward, 2007

14. Who Does What? Evidence Technician/
Criminalist vs. Detective/Investigator
Evidence Technician/Criminalist
records crime scene
collects and preserves physical evidence
Detective/Investigator
searches crime scene
ascertains motive for crime
seeks additional information
questions suspects
Osterburg & Ward, 2007

15. Motives for Committing Homicide
Financial gain
Sexual gratification
Emotional factors
Self-protection
Interrupted crimes
Elimination of eyewitnesses
Elimination of potential informant
Removal of inconvenience or impediment
Osterburg & Ward, 2007

16. Body as Focus of Investigation
Who is deceased?
What are cause and manner of death?
Reconstructing the crime
What time or times are involved?
What occurred? How did it occur?
Osterburg & Ward, 2007

17. Chapter 16
Robbery
Osterburg & Ward, 2007

18. Robbery: Model Penal Code Definition
A person is guilty of robbery if in the course of committing a theft if he or she:
1. Inflicts serious bodily harm upon another, or
2. Threatens another with or purposely puts another in fear of serious bodily injury or
3. Commits or threatens to commit any felony of the first or second degree
Osterburg & Ward, 2007

19. ROBBERY
(a)A person commits an offense if, in the course of committing theft as defined in Chapter 31 and with intent to obtain or maintain control of the property, he: (1) intentionally, knowingly, or recklessly causes bodily injury to another; or (2) intentionally or knowingly threatens or places another in fear of imminent bodily injury or death. (b) An offense under this section is a felony of the second degree.

20. Types of Robberies Street robberies Residential robberies
Bank and armored car robberies
Commercial robberies
Osterburg & Ward, 2007

21. Criminal Investigation Unit 7 Lecture
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