Which of the following types of evidence is considered as the best evidence?

The Best Evidence Rule (also called the Original Document Rule) is a legal principle that requires parties to produce the original version of a document when its contents are in dispute, because the original is the most reliable and unaltered form. Copies, computer records, and testimony are all considered secondary or derivative evidence that may introduce errors, omissions, or deliberate alterations. In a forensic investigation, presenting the original document eliminates doubt about authenticity and preserves the integrity of the evidence chain.

A copy of the original document is secondary evidence and is only admissible when the original cannot be produced, making it inherently less authoritative than the original.

A computer-generated record is considered a form of secondary or derivative evidence and may be challenged on grounds of tampering, data integrity, or authentication unless supported by hash verification and chain of custody.

Information gathered through a witness's senses constitutes testimonial evidence, which is subjective and subject to human memory limitations, placing it lower in evidentiary weight than documentary originals.