ASIS International (ASIS) Professional Certified Investigator Practice Exam

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What does the term "modus operandi" refer to in the context of criminal behavior?

  1. The motive behind a crime

  2. The specific method a criminal uses to commit an act

  3. The evidence collected at a crime scene

  4. The type of crime committed

The correct answer is: The specific method a criminal uses to commit an act

The term "modus operandi," often abbreviated as MO, refers specifically to the unique methods or patterns that a criminal employs when committing a crime. This concept is crucial in criminal investigations as it helps identify and categorize criminal behavior, allowing investigators to link crimes to the same perpetrator based on their distinctive techniques. For example, a burglar might always target homes with specific security vulnerabilities or may consistently use the same tools to gain entry. Understanding a criminal’s modus operandi can significantly aid law enforcement in predicting future offenses and identifying suspects. In contrast, the other options delve into different aspects of crime: the motive addresses the underlying reasons for committing the crime, the evidence relates to the materials gathered during an investigation, and the type of crime categorizes it based on legal definitions. However, none of these options encapsulate the specific pattern of behavior that "modus operandi" signifies in criminal activity.