What are class characteristics of physical evidence?

Class characteristics of physical evidence refer to identifiable markers that represent a group rather than an individual item. These characteristics can be used to categorize evidence into groups based on shared traits, such as the make and model of a tire tread, the type of fabric, or the general shape of a tool mark. For instance, if a particular tire tread pattern is found at a crime scene, it can be linked to a specific group of vehicles that share that tread pattern, helping investigators narrow down potential suspects.

This classification contrasts with individual characteristics that can be traced back to a specific source, which would represent unique identifiers of a single item. While the other options mention concepts related to evidence, they do not accurately reflect the nature of class characteristics. Understanding class characteristics is essential for forensic analysis, as it helps law enforcement connect evidence to broader categories, guiding investigations effectively.