Title: Introduction to Forensic Psychology 2nd Edition Bartol
1Introduction toForensic Psychology2nd
EditionBartol Bartol (2008)
- Chapter 3
- Police Psychology
- Investigative Psychology
2Investigative Psychology
- DEFINITION The application of psychology to
criminal investigation. - Profilingone of the tasks often associated with
investigative psychologyrequires sketching the
significant psychological and demographic
features of a person or persons. - Broadly defined, investigative psychology
includes research and practice involving - -Profiling -Risk Assessment
- -Police Line-ups -Interrogation
- -Polygraph Hypnosis -Other?
- -
33 Questions
- What are the important behavioral features of the
crime that may help identify and successfully
prosecute the perpetrator? - What inferences can be made about the
characteristics of the offender that may help
identify him or her? - Are there any other crimes that are likely to
have been committed by the same person?
4CRIMINAL PROFILING Background
5What is Criminal Profiling?
- Criminal profiling is the process of identifying
personality traits, behavioral tendencies,
geographical location, and demographic or
biographical descriptors of an offender (or
offenders) based on crime scene characteristics.
6Goals of Profiling
- The primary goal of profiling is to narrow the
field of possible suspects. - Profiling is also a form of prediction -- the
profiler tries to predict who the offender or
offenders might be and where and how the next
crime may occur.
7Why Use Criminal Profiles in Law Enforcement?
- Traditional investigative techniques often fall
short in extreme cases. - A subset of offenses/offenders are considered
most suitable for profiling -- What subset of
offenders and why more suitable for profiling??
8Brief History of Criminal Profiling
- 1940s - First recorded use by psychiatrist Walter
Langer during WWII commissioned to construct a
psychodynamic profile of Hitler. - 1957 - psychiatrist James Brussels worked with
NYPD to construct a profile of the Mad Bomber. - 1970s-1980s - FBI (Howard Teten, John Douglas,
Robert Ressler, Roy Hazelwood, and others) became
involved in psychological profiling and
popularized the technique. - 1990s 2003 - attempt (by David Canter, Maurice
Godwin, Ron Holmes, Robert Keppel, Brent Turvey,
Kim Rossmo and others) to scientize profiling and
move the practice beyond the purview of the FBI.
9The FBI Profilers
- Small/prominent group of FBI profilers helped to
popularize the term in 1970s in the Behavioral
Science Unit -- called the National Center for
the Analysis of Violent Crime (NCAVC) since 1984. - Responsible for establishing the Violent Criminal
Apprehension Program (VICAP). Published Crime
Classification Manual, Sexual Homicide Patterns
and Motives and true crime novels. - Are known for the ORGANIZED/DISORGANIZED typology
and focus on M.O. and SIGNATURE. - Criticized for relying too much on
intuition/faulty use of the scientific method.
10Is Profiling a Science or Profession?
- Profiling has not yet achieved the status of a
profession. Factors hindering professionalization
- Lack of consensus (on terms, approaches,
training, appropriate experience/educational
background, etc.). - Practical issues (sensitivity and confidentiality
of cases). - Ego/territorial issues.
- Absence of uniform standards, practices, peer
review, and ethics. - Small number (if any) of profiling positions
where profiling is the primary job description. - The notion (and acknowledgement among many
profilers) that profiling is more art
than science.
11Assumptions Made in the Profiling ProcessSee
Holmes Holmes (2001). Profiling Violent Crimes.
Sage.
- Crime scene reflects the personality of the
offender. - M.O. remains similar.
- Signature will remain the same.
- Offenders personality will not change.
12The Organized-Disorganized Typology
- Whether or not the crime scene is left ORGANIZED
or DISORGANIZED is said to provide information
about the offenders criminal sophistication and
personality. - Organized crime scene reflects offender who
commits crime out of a need for power. Motivation
associated with PSYCHOPATHY. - Disorganized crime scene reflects offender who
commits crime out of passion, compulsion,
frustration, or anxiety. Motivation associated
with PSYCHOSIS.
13The Organized Crime Scene See Ressler, Burgess,
Douglas (1992) Sexual Homicide Patterns and
Motives. Free Press.
- Offense planned
- Victim a targeted stranger
- Victim personalized
- Controlled conversation
- Crime scene reflects overall control
- Demands submissive victim
- Restraints used
- Aggressive acts prior to death
- Body hidden
- Weapon/evidence absent
- victim or body transported from scene
- Associated with psychopathy
14The Disorganized Crime Scene See Ressler,
Burgess, Douglas (1992) Sexual Homicide
Patterns and Motives.
- Spontaneous offense
- Victim or location known
- Depersonalizes victim
- Minimal conversation
- Crime scene random and sloppy
- Sudden violence to victim
- Minimal use of restraints
- Sexual acts after death
- Body left in view
- Evidence/weapon often present
- Body left at death scene
- Associated with Psychosis
15Interview/Interrogation StrategiesSee Holmes
Holmes (1996) Profiling Violent Crimes. Sage.
- ORGANIZED
- Direct confrontation
- Respects competency
- One-person interview
- Dont expect free information
- No use of false evidence (are too sharp for
this) - Conduct when suspect has no time to gather
thoughts
- DISORGANIZED
- Relationship motivated
- Empathy
- Constant stream of conversation
- Use positive personal relationship
- Conduct at night
16Distinction Between Psychopathy and Psychosis
- PSYCHOPATHY
- Personality disorder made up of a particular
constellation of characteristics) - Lack of attachment, defect in affect, absence of
anxiety - In touch with reality
- PSYCHOSIS
- Clinical mental illness Schizophrenia
- May meet legal definition of insanity
- Out of touch with reality
17Criticism of the Organized/Disorganized
Typology See Turvey (2002) Criminal Profiling.
Academic Press.
- Developed/oversimplified for use by law
enforcement professionals with little academic
training in criminology, psychology, and forensic
science and encourages unsophisticated profiling. - Is a FALSE DICHOTOMY --few offenders/crime scenes
it neatly into either type. - Other problems?
18M.O. and Signature(See Douglas, Burgess,
Burgess, Ressler (1997). Crime Classification
Manual. Jossey-Bass Keppel, R.D. Birnes, W.J.
(1997). Signature Killers. Pocket Books.
- METHOD OF OPERATION (M.O.)
- How the offender committed the crime. Tells about
the experience of the offender and
situational/contextual factors involved in the
crime. - SIGNATURE
- The behavior/expression of fantasy the killer
must leave at the scene to satisfy
emotional/psychological needs. Goes beyond whats
necessary to commit crime and tells about the
offenders psychological needs and motivation.
19Factors that Shape M.O.
- Trade/Professional Experience
- Criminal experience and confidence
- Contact with the criminal justice system
- Media and pop culture
- Offender Mood/Mental state
- X-Factors (unknown/unplanned influences)
20Factors that Shape Signature
- Personality/Psychopathology
- Evolution of Fantasy
21Distinguishing M.O. from SignatureSee Turvey
(2002) Criminal Profiling. Academic Press.
- Signature and M.O. needs may be satisfied by the
same behavior. Important to remember the two
most important axioms of criminal profiling - Different offenders do similar things for
different reasons. - Offender behaviors can be the result of multiple
motivations and/or external influences.
22Static and Dynamic RiskSee Andrews Bonta
(2003). The Psychology of Criminal Conduct.
Anderson.
- Offender risk factors are static and dynamic. Are
important in understanding M.O. and Signature
behaviors. - STATIC RISK Stay the same over time
- DYNAMIC RISK Change over time
- Stable dynamic change slowly over months or
years - Acute dynamic change rapidly over minutes or
days. - What type of risk factors are M.O. and Signature
behaviors?
23The Psychological Autopsy
- The Psychological Autopsy is an attempt to
reconstruct the personality profile and cognitive
features of deceased. This postmortem
psychological analysis is also called
reconstructive psychological evaluation and
equivocal death analysis . Psychological
autopsies are important to - Assist certifying officials to clarify deaths
that are ambiguous, uncertain, or equivocal as to
the manner of death - Aid in investigation to determine insurance
payments and national security issues. - To make a reasonable determination of what may
have been in the mind of the deceased person
leading up to and at the time of
deathparticularly if the death appears to be a
suicide - Psychological autopsies differ from criminal
profiling in two important ways (1) the profile
is constructed on a dead person, and (2) the
identity of the person is already known.
24Geographical Profiling and Mapping
- Geographical profiling refers to the analysis of
geographical locations associated with the
spatial movements of a single serial offender, - Geographical mapping is concerned with analyzing
the spatial patterns of crimes committed by
numerous offenders over a period of time.
Geographical mapping focuses on identifying the
hot spots of certain types of crime. - In 1995, D. Kim Rossmo wrote a doctoral
dissertation at Simon Frasier Universitys School
of Criminology on geographical profiling. Rossmo
developed a computer program called Criminal
Geographic Targeting (CGT). It is designed to
analyze the geographical or spatial
characteristics of an offenders crimes.
25The Polygraph
- The polygraphcommonly called the lie
detectordetects psychophysiological responses
that accompany emotional reactions to guilt,
shame, and anxiety through heart rate, blood
pressure, breathing rate, and skin conductance. - In addition to observing the physiological
measures, the skillful polygrapher makes
behavioral observations and notations to infer
truth or deception in the subject being examined.
- The polygraph can accurately measure and record
the physiological responses but it is unclear
whether it can detect actual lying and deception.
26INVESTIGATIVE PSYCHOLOGY AND OFFENDER
PROFILING Discussion Questions
27Discussion Questions(Homant Kennedy/BB Supp
Readings)
- What are the major limitations in researching the
effectiveness of profiling? - Why Is Profiling So Inaccurate?
- What direction do the authors of your readings
this week (e.g., Homant Kennedy) suggest we
need to go in terms of conducting research on
profiling? How do Homant Kennedy define - Offender Profiling
- Psychological Profiling
- Geographical Profiling
- Equivocal Death Analysis
28Discussion Questions(Muller/BB Supp Readings)
- What two main approaches to profiling are
reviewed in this article? Explain the features of
each.
29Discussion Questions(BB Text Ch 3)
- What might explain the popularity of profiling,
despite the lack of evidence to support it? - What other applications of psychological theory
and research do the authors suggest can be
considered under the heading of investigative
psychology?
30Discussion Questions General(BB (Text)
- Explain the significance of static and dynamic
risk factors in the prediction and profiling of
human behavior. - Explain how the processes of a) unconscious
transference and b) own-race bias can affect
identification provided by eyewitnesses to an
event. - Forensic psychologists have offered
recommendations to police in constructing
line-ups. What are these recommendations? Upon
what research findings are they based?