Which type of evidence is considered tangible and can be directly collected at a crime scene?

The correct choice highlights physical evidence as tangible, meaning it has a concrete existence that can be perceived with the senses. Physical evidence includes items like fingerprints, weapons, or any objects that can be directly collected and analyzed from the crime scene. This type of evidence is crucial in investigations because it can provide direct links between the suspect and the crime, making it vital for corroborating testimony and establishing facts in a case.

Circumstantial evidence, while important, relies on inference and does not have a direct link to the crime itself without additional context. Testimony, on the other hand, is verbal evidence provided by witnesses and is inherently subjective. Direct evidence can lead to a clear conclusion but may not always be physically collected from a scene, as it often pertains to eyewitness accounts rather than physical items.