Your responsibilities upon arriving at a crime scene include:

Upon arriving at a crime scene, one of the primary responsibilities is to check the immediate area for suspects. This is crucial for several reasons. First and foremost, ensuring the safety of everyone involved is paramount; therefore, securing the perimeter and assessing any immediate threat is essential. Additionally, if any suspects are present, they may pose a risk to officers, witnesses, or any potential victims.

Conducting a brief assessment of the area can allow officers to either apprehend a suspect who may be trying to flee or gather useful information that might lead to identifying the perpetrator. It is part of the broader responsibility of law enforcement to intervene promptly to control the situation, which is why this action must be prioritized upon arrival.

In contrast, documenting only the weather conditions would be overly limited in scope, and waiting to collect evidence until all witnesses have been questioned could risk the integrity of that evidence or allow for contamination. Leaving all decisions to the crime scene unit also would not be appropriate, as the first responding officers must take immediate action to secure the area and manage any potential threats.