Under what circumstance should the watch commander determine that photographs of injuries are necessary?

The correct choice emphasizes that the decision to photograph injuries should be made based on the specific circumstances of each incident. This means assessing factors such as the nature and severity of the injuries, the context of the encounter, and potential legal or administrative implications that could arise.

In situations involving arrests or use of force where injuries might be present—which are often scrutinized later—it's crucial for the watch commander to make an informed judgment. This tailored approach allows the commander to consider the unique details of the incident, including witness statements, the behavior of the involved parties, and any potential claims of excessive force. It ensures that the documentation is relevant and can effectively support an accurate account of the events and any necessary follow-up actions.

Choosing to photograph injuries based on circumstances also emphasizes procedural justice and thoroughness, which can protect both the rights of individuals in custody and the accountability of law enforcement officers. This critical evaluation helps create a fair and just outcome in potentially contentious situations.