Who is responsible for activating the ICS and preserving evidence?

The first officer on scene is responsible for activating the Incident Command System (ICS) and preserving evidence. This is crucial because they are often the first point of contact with the incident, allowing them to assess the situation and initiate a coordinated response.

By activating the ICS, the officer establishes a structured response framework that enables effective communication, resource allocation, and management of the incident. Additionally, preserving evidence is essential for ensuring that all relevant information is documented and protected, which is vital for any subsequent investigation. The first officer's actions ensure that the response is organized and that the integrity of the scene is maintained, allowing for a thorough and effective investigation later on.

In contrast, other roles such as paramedics, dispatchers, or witnesses have different responsibilities that do not specifically include the activation of the ICS or the preservation of evidence. Paramedics focus on medical assistance, dispatchers coordinate communication, and witnesses may provide statements but do not have the authority to manage the incident scene or oversee the ICS.