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CP501
Syllabus
Criminal Profiling
Note:
Brent E. Turvey, MS is a full partner of Forensic
Solutions LLC.
He can be reached for comment or consultation by contacting:
Forensic Solutions; 329 Harbor Dr., Suite 211, Sitka, AK
99835;
Phone (907) 747-5121; Email: bturvey@corpus-delicti.com
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to Course Catalog
SECTION I
Lecture 1: An Introduction to the Art
1. History and
Definitions of Criminal Profiling
- An educated attempt to provide investigative
agencies with specific information as to the type of individual who
could have committed a certain crime. - Geberth
2. The purposes of Criminal Profiling
3. Types of cases that can benefit from profiling
& how
4. Physical evidence: the foundation for Criminal
Profiling
5. The elements of a Criminal Profile
Note: The following associated readings are recommended only. They
are not required for the completion of CP501.
Readings 1:
- Burgess, A. G. & Burgess A. W. & Douglas,
J. & Ressler, R., Crime Classification Manual,
Lexington Books, 1992, Chapter 6
- Burgess, A. & Douglas, J. & Ressler, R.
Sexual Homicide: Patterns and Motives, Lexington Books, 1988, Ch. 9
- DiMaio, D. & DiMaio V., Forensic
Pathology, CRC Press,1993, Chapter 18
- Geberth, Vernon, "A Personal Perspective of
Professional Homicide Investigation"
- Geberth, Vernon, Practical
Homicide Investigation, 2nd ed., CRC Press,
1993, Chapter 17, pp. 489-538
Lecture 2: Profiling and the Law
1. Objectivity & Ethics
2. Inductive Profiles and Syndrome Evidence
3. The Deductive profiling model
4. Admissibility Issues
Lecture 3: The Equivocal Forensic Analysis
1. The Importance of an Equivocal Analysis
2. The staged crime scene
- The staged crime scene occurs when someone purposely
alters the crime scene prior to the arrival of the police.
- Both Douglas et al and Geberth
provide excellent foundations for discussions on what elements to
look for in a staged crime scene, as well as case examples.
3. Investigative Strategies
4. Case Example
Lecture 4: Developing a Crime Scene Profile
1. Organized/Disorganized crime scenes as a continuum
- It is important to conceptualize crime scenes
(and offenders) not as either organized or disorganized, in fixed
black and white terms, but rather as existing along a continuum. The
more experienced an offender is, the more skillful he may become;
the more planning, the more patient, the more organized he may become.
Its not so much then about age as it is experience and personality.
2. Determining the Crime Scene Type
3. Determining the Crime Scene Characteristics
4. Determining offender risk
5. Case example
Lecture 5: Developing a Crime Scene Profile
1. Linking crime scenes: Overcoming Linkage
Blindness
- Linking unrelated crimes is one of the most helpful
ways in which profiling quickly assists an investigation. It keeps
investigators focused on the series of crimes at hand and help to
avoid distraction.
- Signature is used to link crime scenes when physical
evidence is not adequate to the task. MO alone does not always indicate
linkage. Signature, being comprised of more unique and individual
behaviors, is a more competent indicator of what crimes may be related.
- ViCLAS and ViCAP
2. MO vs. Signature
- The offender's MO (modus operandi)
is comprised of the actions that are necessary for the completion
of the crime.
- Signature behavior is comprised of the
actions committed by the offender that are not necessary for the completion
of the crime; behavior that the offender did not have to do.
3. Case example
Note: The following associated readings are recommended only. They
are not required for the completion of CP501.
Readings 2-5:
- Burgess, A. & Douglas, J. & Ressler, R.
Sexual Homicide: Patterns and Motives, Lexington Books, 1988, Ch. 8-9
- Douglas, J. & Munn, C., "Violent Crime Scene Analysis:
Modus Operandi, Signature, and Staging," FBI Law Enforcement
Bulletin, February 1992, pp. 1-10
- Geberth, Vernon, "The Signature Aspect in
Criminal Investigation" Law and Order, November 1995, pp. 45-49
- Geberth, Vernon, "The Staged Crime Scene",
Law and Order, February, 1996, pp. 89-93
- Keppel, Robert, "Signature Murders: A report of Several Related
Cases" Journal of Forensic Sciences, Vol. 40, No. 4, July 1995,
pp. 670-674
- Turvey, Brent E. "The
Impressions of a Man: An Objective Forensic Guideline to Profiling Violent
Serial Sex Offenders" Unpublished
Article, June, 1996
SECTION II
Lecture 6: Victimology
1. Definitions:
- Victimology is simply the study of victim
characteristics. The victim is a reflection of the offenders
desire; of the offenders fantasy. The victim must also be accessible
to the offender. By profiling the victims behavior, it is more
determinable how the offender is selecting his victims, and further
how his victims satisfy his fantasy motives.
2. Profiling the Victim
- Victim Characteristics: Holmes gives a
list of important victim characteristics (below), and Sexual Homicide
discusses both victim and offender risk. Both are critical in assessing
how an offender chooses a victim population (schoolgirls, prostitutes,
homeless, daycare, etc.
) and subsequently acquires a single
victim from that population.
- Script: The offenders script
to and for the victim during the attack speaks a great deal about
that offender (Behavior Evidence). A victims statement about
an attack can also lend itself to profiling inferences about his/her
attacker (Adams).
3. Victim Risk Assessment (not to be confused with
a blame assessment)
4. The Use and Misuse of Statement Analysis
5. Case example
Readings 6:
- Adams, Susan "Statement Analysis: What Do Suspects Words Really Mean?"
FBI Law Enforcement Bulletin, October 1996
- Burgess, A. & Douglas, J. & Ressler, R.
Sexual Homicide: Patterns and Motives, Lexington Books, 1988, Ch. 13
- Dietz, P. & Hazelwood, R. & Warren, J.
"Compliant Victims of the Sexual Sadist" Australian Family
Physician, Vol. 22, No. 4, April 1993, pp. 474-479
- Holmes, Ronald & Holmes, Stephen, Profiling Violent Crimes: An
Investigative Tool, Sage Publications, 1996; Chapter 9
Lecture 7: Offender Profiling
1. Organized/Disorganized Offenders, as a continuum
- An organized or disorganized crime scene indicates
an organized or disorganized offender. However, this dichotomy has
some major flaws which need to be addressed. Correlated traits are
listed in both Geberth and Burgess
2. Fixated v. Regressed
- Fixated and regressed are helpful classifications
of child molester offender types based on how they came to be motivated
to molest.
- The fixated offender is a chronic fantasy addict.
Their interest in a victim type endures time and dominates their fantasy.
They are the most likely to reoffend.
- The regressed offender is one who is more responding
to pervasive feelings of control loss. Likely they have suffered a
series of emotional setbacks or hardships such as divorce, loss of
a loved one, loss of a job, failure to be promoted etc.
This
offender is less likely to reoffend than the fixated, given the proper
intervention and treatment.
- It should be noted that most family incest relationships
have an average length of two years, and in this authors opinion
most then do not qualify the offender as regressed.
3. Script
- The script is not only what the offender says
to the victim, but what the offender forces the victim to say. Sources
can be audio or video tapes the offender made of the attack; a journal
that offender keeps; fiction that the offender writes; or a statement
made by a victim about an attack.
- It is very important not to ignore the script
because it gives direct insight into the fantasy of the offender;
a good analogy is that the offender is the director of his fantasy,
and he is also the writer of the script, and he casts the victim in
the role he requires, and he combines all of those elements and more
to make the movie that is his fantasy.
Lecture 8: Offender Profiling
1. Child Molester Typologies
2. Rapist Typologies
3. Proposed Serial Killer Typologies and the problems
they present
- There are many different kinds of serial killers.
Many can be classified by the serial rapist typology above quite easily.
This is due to the fact that for many serial killers, the killing
is incidental to the fantasy that they are enabling with the victim.
They kill to cover their tracks, and prevent discovery.
- Holmes gives interesting breakdown of
four types of serial killers(Visionary, Mission-Oriented, Hedonistic,
and Power/control). It is useful because it is simple. It is not
a perfect typology and there is a great deal of cross-over in real
life. I include it because it provides a good discussion of practical
motives for serial killings.
4. The offenders perspective
- It is very important to understand what the offender
thinks that he is doing with his victims. If investigators can understand
that, then they can understand his fantasy, and understand what the
offender is going to have to do to make his fantasy come true. This
will provide investigative proactivity into future victims.
Note: The following associated readings are recommended only. They
are not required for the completion of CP501.
Readings 7-8:
- Burgess, A. & Groth, A., & Holmstrom, L.
& Sgroi, S., Sexual
Assault of Children and Adolescents, Lexington
Books, 1978, Chapter 1
- Geberth, Vernon, Practical
Homicide Investigation, 2nd ed., CRC Press,
1993, Chapter 17, pp. 489-538
- Gilgun, Jane, Ph.D. "How Perpetrators View
Child Sexual Abuse," J. Social Work, 1989
- Groth, A. Nicholas, Men
Who Rape, Plenum Press, 1979, Chapter 2, pp. 12-83
- Hazelwood, R. & Warren, J., "The Criminal
Behavior of the Serial Rapist," FBI Law Enforcement
Bulletin, February 1990, pp. 11-16
- Henry, Joseph "My life Molesting Children" Statement by a convicted child molester before the
Permanent Subcommittee of Governmental Affairs, February 21, 1985
- Holmes, Ronald M., Serial
Murder, Sage Publications, 1988
- Marshall, William L., & Laws, D. & Barbaree,
H., Handbook of Sexual Assault: Issues, Theories, and Treatment
of the Offender, Plenum Press, 1990, Chapter 14
- Turvey, Brent E. "Behavior
Evidence: The Role of Behavioral Profiling in Unsolved Serial Rape" Unpublished Article, June, 1996
Lecture 9: Profiling & Investigative
Strategy
1. Linking crimes that appear unrelated by MO
2. Reducing the Suspect Pool
3. Search Warrants and Probable Cause
4. Psychological value of physical evidence: Collateral
materials
Lecture 10: Profiling & Trial Strategy
1. It's never too late: Rendering a profile at any
stage in the adjudication process
2. Understanding the Physical Evidence; finding
experts
3. Understanding Fantasy Behavior & Motive
4. Offender State of Mind before, during, and after
the crime
5. Understanding the usefulness of MO and Signature
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