Which indicators can be used to establish a suspect's MO?

• A. All of the above
• B. Kinds of injuries
• C. Date and time of events
• D. Types of weapons used

Answer: (A)

Modus operandi is the pattern a offender uses to commit crimes, and investigators build it from patterns that recur across incidents. Kinds of injuries reveal the technique and potentially the weapon or level of force the offender tends to use, showing a repeatable method. The date and time of events expose routine, pacing, and opportunities the offender relies on, which often recur across cases. Types of weapons used point to preferred tools and capabilities, another aspect likely to stay consistent for the same offender. Put together, these elements create a cohesive picture of how the suspect tends to operate, making all of these indicators useful in establishing MO.