An Incident Complex may be appropriate for all of the following incidents except:

An Incident Complex is a management strategy that combines multiple incidents that are geographically close or have a shared operational need. This approach is often beneficial when incidents are interrelated and require coordinated resources and communication to manage effectively.

In the scenario of a mass shooting, while it is certainly a critical and complex situation that requires immediate and specialized response efforts, it often demands a more focused, dedicated response that does not typically necessitate the coordination with multiple separate incidents that would define an Incident Complex. A mass shooting usually activates emergency response protocols specific to that type of incident, which may not overlap with the dynamics of other incidents occurring nearby.

On the other hand, an incident already underway with an Incident Management Team and smaller incidents nearby can benefit from the establishment of an Incident Complex to streamline resources and management. Similarly, several similar incidents close to one another or a disaster scenario can naturally lend themselves to the coordination that an Incident Complex provides, ensuring that personnel and resources are utilized effectively across interconnected situations. Therefore, the mass shooting stands out as an incident that typically requires its own focused response rather than being grouped into an Incident Complex.