What is one example of individual physical evidence?

One example of individual physical evidence is blood because it can be linked to a specific source with a high degree of certainty. Individual physical evidence refers to items that can be traced back to a specific individual or source, and blood contains unique DNA profiles that are unique to each person, except for identical twins. This genetic material can be analyzed through forensic techniques such as DNA profiling, which can provide direct connections between a suspect and a crime scene or victim, making blood a powerful tool in criminal investigations.

Other types of physical evidence, like glass, soil, and paint, are generally considered class evidence since they can only be associated with a group or type rather than an individual. For instance, while a particular piece of glass might match fragments found at a crime scene, many other objects could contain similar glass, making this type of evidence less specific. In contrast, the uniqueness of DNA found in blood highlights its importance as individual physical evidence.