Definition of primary evidence in English:

primary evidence

noun

Law
  • [mass noun] Evidence, such as the original of a document, that by its nature does not suggest that better evidence is available.

    • ‘The panel acknowledge that in this respect they did not have primary evidence.’
    • ‘I comment only that I do not find the distinction between primary evidence and corroboration helpful in this context.’
    • ‘I advise you in the strongest terms, in the circumstances of this case, to guard against accepting hearsay evidence as primary evidence of fact.’
    • ‘Whether this evidence was hearsay evidence or primary evidence depends on of what fact it is that the complaints were intended to be evidence.’
    • ‘All other evidence is secondary to that primary evidence.’