In this chapter you will learn: List and explain the classifications of sex offenses, list and explain the four types of sexual murder, discuss interview procedures and investigative questions for sexual assault cases, explain why women do not report rape to the police and the motivation for false rape allegations, outline the types of physical evidence collected in rape and sexual assault cases, | TEN Sex-related Offenses LEARNING OBJECTIVES List and explain the classifications of sex offenses List and explain the four types of sexual murder Discuss interview procedures and investigative questions for sexual assault cases Explain why women do not report rape to the police and the motivation for false rape allegations Outline the types of physical evidence collected in rape and sexual assault cases Discuss the importance of condom trace evidence Identify the use and effects of Rohypnol and GHB Assess investigative and evidence collection techniques for drug-facilitates sexual assaults Recognize common characteristics of sexual asphyxia, or autoerotic death Describe a psychological autopsy 10-1 CLASSIFICATION OF SEX RELATED OFFENSES Serious Sex Offenses Sex offenses of this type, such as rape or sexual battery as it is also called, are high-priority offenses Nuisance Sex Offenses Included in this classification are such acts as voyeurism and exhibitionism Sex Offenses Involving Mutual Consent Sex offenses of this nature involve consenting adults whose behavior is deemed illegal by various state and local laws 10-2 RAPE-MURDER CLASSIFICATIONS Keppel and Walter developed a model for understanding rape-murder by examining: behaviors homicidal patterns and suspect profiles of convicted sexual murders 10-3 Power Assertive Power Reassurance Anger Retaliatory Anger Excitation Rape is planned; murder is not planned Rape is planned; murder is not planned Rape and murder are planned Rape and murder are planned Power interest Power interest Anger driven Anger driven Killer’s increasing aggression toward the victim ensures control Killer acts out fantasy and seeks reassurance from the victim Killer seeks revenge for anger toward another person by attacking a symbolic victim Killer engages in prolonged torture, exploitation, and/or mutilation, thereby energizing his fantasy life (Source: Robert D. Keppel and Richard Walter, “Profiling Killers: A Revised Classification . | TEN Sex-related Offenses LEARNING OBJECTIVES List and explain the classifications of sex offenses List and explain the four types of sexual murder Discuss interview procedures and investigative questions for sexual assault cases Explain why women do not report rape to the police and the motivation for false rape allegations Outline the types of physical evidence collected in rape and sexual assault cases Discuss the importance of condom trace evidence Identify the use and effects of Rohypnol and GHB Assess investigative and evidence collection techniques for drug-facilitates sexual assaults Recognize common characteristics of sexual asphyxia, or autoerotic death Describe a psychological autopsy 10-1 CLASSIFICATION OF SEX RELATED OFFENSES Serious Sex Offenses Sex offenses of this type, such as rape or sexual battery as it is also called, are high-priority offenses Nuisance Sex Offenses Included in this classification are such acts as voyeurism and exhibitionism Sex Offenses Involving .