Class Characteristics refer to:

Class characteristics pertain to the common features or attributes that can be found in a group of items, rather than unique features that distinguish one specific item from another. This concept is fundamental in forensic science, as it helps to establish connections between evidence and larger groups of objects or materials, such as types of tools, shoes, or firearms.

For example, if a particular brand and model of tire is found at a crime scene, and it matches the class characteristics of many other tires from that brand, investigators can draw conclusions about the possibility of multiple vehicles being involved. While individual characteristics, such as specific tread wear patterns or damage unique to a particular tire, may be used for identification, class characteristics provide the foundational understanding necessary to link evidence to a broader context.

This differentiates class characteristics from unique features or specific behaviors, which may not have direct relevance when categorizing items into broader categories or groups. Thus, class characteristics are essential in forensic analysis for identifying patterns and making connections across types of evidence.