A more thorough explanation:

Definition: Autoptic proference is the act of presenting an item for inspection by the court as evidence. It is a form of demonstrative evidence.

For example, if a murder weapon is found, it can be presented to the court as autoptic proference. The jury can inspect the weapon themselves to determine if it matches the evidence presented in the case.

Autoptic proference is a rare form of evidence because it involves presenting the actual item in question, rather than just presenting evidence about the item. It can be a powerful tool in convincing a jury of a defendant's guilt or innocence.