Serial rapist

A serial rapist is a rapist who rapes more than one person over a period of time. Most times, a serial rapist will commit a number of rapes over a period of months or years. Some serial rapists target children. "Sexual predator", "Repeat Rape" and "Multiple Offending" can also be used to describe the activities of those who commit a number of consecutive rapes, but remain unprosecuted when self-reported in research. Others will commit their assaults in prisons. In some instances, a group of serial rapists will work together. These rapists can have a pattern of behavior that is sometimes used to predict their activities and aid in their arrest and conviction. Serial rapists also differ from one time offenders because "serial rapists more often involved kidnapping, verbally and physically threatening the victims, and using or threatening the use of weapons."

Many times, the evidence that is collected from the physical examinations and testimony of those who were raped is in the possession of numerous law enforcement agencies and may impede the recognition that the rapist has committed the crime over a period of time. Conviction of the rapist can be delayed when victims do not cooperate in the investigation. Evidence can consist of DNA, saliva and fingerprints, hair, vaginal swabs, fingernail scrapings, and bed linens. Those investigating serial rapes often identify the rapist with a 'nickname' before an arrest is made by characterizing the tactics or patterns of the rapes.

Serial rapists are more likely to be convicted than a rapist known by the victim. Unlike those convicted for a single case of rape, serial rapists often go unrecognized due to the slow process of analyzing the backlog of rape kits.

Case Western Reserve University has identified the tendency of sexual offenders of being previously arrested. Twenty-six percent had previously been arrested for sexual assault. Sixty percent were arrested for at least one other sexual assault unrelated to the first one.

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