Which scenario might require detectives to be involved?

Detectives are typically involved in more complex cases that require specialized investigative skills beyond the initial response of patrol officers. Death investigations often fall within this scope because they can involve uncovering the cause of death, gathering evidence related to potential homicides or accidents, and examining the circumstances surrounding the incident in detail. This process may include speaking with witnesses, reviewing physical evidence, and collaborating with medical examiners or forensic experts. The intricate nature of these cases necessitates the involvement of detectives to ensure a thorough and accurate investigation.

In contrast, routine traffic stops and minor disputes generally do not require the investigative depth that detectives provide, as these situations can often be managed by patrol officers on site without the need for further inquiry. While "all police actions" suggests involvement in every scenario, that does not align with the organizational structure of police work, where different types of incidents are handled by different personnel based on their training and expertise. Thus, death investigations aptly represent a scenario where detectives are essential for a comprehensive examination of the facts and circumstances involved.