What defines a "cold case" in MULES usage?

A "cold case" in the context of MULES usage refers specifically to an unresolved criminal investigation that currently has no active leads. This definition captures the essence of cold cases, which are typically those cases that law enforcement has not been able to solve despite thorough initial investigations. Over time, these cases may become less of a priority, but they remain open and can be revisited if new evidence or information comes to light.

Understanding this concept is crucial for law enforcement officers and investigators, especially when prioritizing cases and resources. Cold cases may involve serious crimes like homicide or missing persons, where the lack of leads often results in detectives needing to rely on established protocols and possibly employ new investigative techniques to gather fresh insights.

The other options do not accurately depict the nature of a cold case. For example, an investigation that has been officially closed would not be considered a cold case because it has concluded rather than remaining unresolved. Similarly, a case actively pursued by law enforcement is not cold; it suggests ongoing efforts to solve the matter. Lastly, labeling an incident as minor with no need for further investigation does not align with the defining criteria of cold cases, which typically involve significant criminal matters.