In forensic terms, what best describes 'individual characteristics'?

Individual characteristics in forensic science refer to unique features that can be traced back to a specific item or source. This distinction is essential in forensic analysis, particularly when attempting to match evidence found at a crime scene to a suspect or object. For example, individual characteristics can include unique markings on a firearm, wear patterns on a shoe, or specific defects in a piece of glass. These features are not shared with other items, allowing investigators to assert with a high level of confidence that specific evidence originated from a particular source.

The concept of individual characteristics is fundamental to forensic science because it helps establish connections between evidence and suspects, reinforcing the integrity and reliability of investigative conclusions.