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Book CoverHere
Chapter 19
SEX CRIMES
Criminal Investigation: A Method for Reconstructing the Past, 7th Edition
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Sex Crimes• UCR revised the definition of Rape in 2013• Many definitions/elements
– Sex crimes range from indecent exposure to forcible rape
– Mutual consent issues– Children cannot consent
• Corpus Delicti• Stalking/Cyberstalking• Child Exploitation
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Definitions• Issue of mutual consent
– Key defense contention• Some acts involve full consent between parties, but are
illegal in particular jurisdictions– “acquaintance rape” / “date rape”
• Forcible rape or sodomy, coupled with murder– Most serious sex connected crime from the perception of
the public• All rapes and serious sexual assaults must have a high
priority in the investigative universe– Frequently difficult to prove in a court of law, and offenders
have gone free because of a lazy or sloppy investigation
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Corpus Delicti
• Legal definition of rape generally involves:– Sexual penetration, however slight, of the victim’s
vulva– By a person or persons without the victim’s
consent– Or with a minor child
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Sex Crimes
• Sex crimes include other forms of aberrant behavior:– Sexual assault– Child abuse and molestation, also known as
pedophilia– Some forms of pornography– Indecent exposure– Incest– Stalking
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Stalking
• Involves conduct that is directed at a specific person or persons, that seriously alarms, annoys, intimidates, or harasses the person(s), and that serves no legitimate purpose
• May involve telephone calls, notes or letters, confrontations, and following a person or persons
• Need to understand the reasons for stalking
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Types of Stalkers
• Psychopathic Personality• Psychotic Personality• Celebrity• Lust• “Hit Man”• Love-Scorned• Domestic• Political
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People
• Victims and Witnesses• Interviews
– Preliminary– Follow-up
• Interviewing Children
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Conducting the Investigation
• Physical Evidence• Goal of the crime scene search is:
– Link the victim and offender to the crime scene– Establish that sexual relations took place– Establish that coercion, fear, or force was used– Establish the offender’s role or activity
• Records and Other Sources of Information
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Goal of Preliminary Interview
• A physical description of the offender or offenders• The location or locations where the crime took place• The identification of possible witnesses• Specific actions of the offender that are volunteered
by the victim• Circumstances leading up to the attack• Information on any weapon or vehicle that may have
been used• Specific info on the actual location of the assault
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Categories of Witnesses• Those who can testify that the offender was
the victim• Those who may be able to testify to specific
acts• Hostile witnesses may claim that the victim
gave consent; others may be ashamed of what they saw and might not want to cooperate– May lie to help a friend
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Interviewing Children
• Assistance of trained professionals is necessary
• Offender is frequently known to the child• Child should be allowed to explain in his or her
own words
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Records and Other Sources• Sex offender record• Sex offense may have been “crime of
opportunity”• Recognize similar cases• There may be a specific motive known only to
the perpetrator– Rape is rarely associated with sexual gratification,
more likely associated with need for power• Nature of attack
– Location, time of day, actions, etc.Copyright © 2014, Elsevier Inc. All
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Profiling Offenders
• Based on the theory that an individual displays unique characteristics in– Personality– Crime scene behavior– Method of operation
• Many are married and employed; not oversexed; not women-haters; IQ varies
• Psychological issues, but not psychotic
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Patterns
• Gang rape– More than one assailant
• Elderly rape– Offenders were young, white, single males
• Child rape– Class-related
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Profiling
• Profiling aids a reasoned, systematic process for the investigation of rape and reduces the possibility of investigative error– Possibility that the offender will strike again or
that he has committed other crimes– Unique characteristics– Length of time
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Hazelwood and Warren Study
• Study of 41 serial rapists– 76% had been sexually abused as children– 71% had been married at least once– 54% had generally stable employment– 52% scored above average on intelligence tests– 51% had been in the armed forces– 36% collected pornography
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Follow-Up Activities
• Objective, reasoned approach– Sympathetic understanding of victim trauma– Unemotional attitude toward suspect
• Explore all contentions (e.g., victim blaming)• Obtain detailed information• Cross-reference files• Review of evidence• Maintain quality records• Preserve evidence carefully
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Conclusion
• Sex crime difficult to investigate• Each case unique• Communication abilities of investigators more
important than gender• Knowledge of elements of the crime, and
techniques in interviewing and interrogation, critical
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