This is evidence that does not forget. It is not confused by the excitement of the moment. It is not absent because human witnesses are. It is factual evidence. Physical evidence cannot be wrong; it cannot perjure itself; it cannot be wholly absent. Only its interpretation can err.
Oath definition, a solemn appeal to a deity, or to some revered person or thing, to witness one's determination to speak the truth, to keep a promise, etc.: to testify upon oath. See more. Dictionary.com
the Hippocratic oath noun [S]. âº a âpromise made by âpeople when they âbecome âdoctors to do everything âpossible to âhelp âtheir âpatients and to have high âmoral âstandards in âtheir âwork. (Definition of the Hippocratic oath from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press).