Which of the following is a key consideration when handling transient evidence?

Time sensitivity is a key consideration when handling transient evidence because this type of evidence can easily be altered, destroyed, or lost if not collected promptly. Transient evidence refers to things like odors, temperatures, or the condition of the scene that can change quickly and may not be retrievable after a short period. For example, a faint smell of alcohol or the temperature of a firearm can dissipate swiftly under different environmental conditions or as time passes. Therefore, investigators must act quickly to secure such evidence to ensure it is preserved for analysis and use in investigations.

Other factors related to handling evidence are important, but they do not specifically relate to the immediate physical characteristics and the ephemeral nature of transient evidence as directly as time sensitivity does. Understanding the urgency tied to transient evidence is crucial for preserving the integrity of a crime scene and ensuring accurate forensic analysis.