Which is a key component of basic evidence processing techniques for first responders?

Collecting evidence from the environment surrounding victims or suspects is essential in basic evidence processing techniques for first responders. This practice ensures that all potential evidence, which could be crucial in reconstructing the events leading up to the incident, is preserved and secured. The environment can hold various types of evidence including biological samples, fingerprints, or items that might indicate the cause or manner of an incident.

This thorough approach allows investigators to establish context and connections that might be relevant to the case at hand. It highlights the importance of considering the larger scene and not just focusing on immediate, obvious sources of evidence, ensuring that the first responders gather all pertinent information to support any subsequent investigation.