Which type of evidence is characterized by bodily fluids?

Biological evidence is characterized by bodily fluids, which include substances such as blood, saliva, semen, and other organic fluids associated with living organisms. This type of evidence is essential in forensic investigations because it can provide crucial insights into a case, such as identifying individuals through DNA analysis, determining the activity that occurred, and establishing connections between suspects and crime scenes.

The importance of biological evidence lies in its ability to convey information about the individuals involved in a particular incident, making it a cornerstone of many forensic investigations. Biological evidence can be analyzed to yield DNA profiles, which can then be matched to known individuals in criminal databases or used to exonerate the innocent.

Other types of evidence mentioned, like prints, trace evidence, and transient evidence, do not primarily focus on bodily fluids. Prints involve marks left by fingers or feet, trace evidence consists of small particles such as hair or fibers, and transient evidence refers to temporary observations that can be easily altered or lost, such as odors or temperatures. Thus, biological evidence is the correct classification for evidence characterized by bodily fluids.