What does 'modus operandi' refer to in criminal investigations?

Modus operandi, often abbreviated as "M.O.," refers specifically to the method of operation used by a criminal. In criminal investigations, understanding a suspect's modus operandi helps law enforcement identify patterns in how crimes are committed, which can be crucial in linking different offenses to the same perpetrator. It encompasses various aspects, such as the techniques used during the crime, the choice of victims, and the circumstances under which the crime occurs, thereby providing insights into the criminal's behavior and decision-making processes.

This concept is essential for investigators as it can reveal why a criminal might select certain targets or commit crimes in particular ways. The knowledge of a suspect’s M.O. can assist in predicting future behavior and in developing strategies for prevention and apprehension. By analyzing the modus operandi, investigators can connect cases that may previously appear unrelated, ultimately aiding in solving cases more effectively.