What term describes physical evidence that has an objective existence?

The term that best describes physical evidence with an objective existence is "physical evidence." This type of evidence refers to tangible items or materials that can be observed, collected, and analyzed in a forensic context. It includes items such as fingerprints, blood samples, weapons, and other objects that can be documented and used in investigations or court proceedings.

Physical evidence is crucial in law enforcement because it helps to establish facts in a case based on concrete, observable data rather than interpretations or opinions. Its objective nature allows for scientific testing and validation, making it an essential component of the investigative process.

While terms like "material evidence" could be closely related, "physical evidence" specifically emphasizes the tangible and verifiable aspect of the evidence, aligning perfectly with the characteristics described in the question.