Based only on actual evidence, rather than tradition etc.

(law) In a legal forum, testimony which is from an under-oath witness who is reciting an out-of-court statement, the content of which is being offered to prove the truth of the matter asserted.

(law) Evidence that relies on an inference to connect it to a conclusion of fact.

(US, law) Evidence discovered after a legal decision has been reached. A party may attempt to have the decision reversed using this evidence. They must first prove that the evidence could not have been discovered until after the decision was reached.

(medicine) Health care whose policies and practices are derived from the systematic, scientific study of the effectiveness of various treatments.

(law) A legal standard for deciding the outcome of a dispute: evidence that clearly indicates that a claim is more likely to be true than not, without needing to eliminate all doubt.

(law) A legal principle that holds an original copy of a document as superior evidence.

(Britain, law) Of a person accused of a crime, to give evidence against one's accomplices in the hope of receiving a lighter punishment. Used when the British monarch is female; see also turn king's evidence.

(Britain, law) Alternative form of turn queen's evidence used when the British monarch is male.

Third-person singular simple present indicative form of turn queen's evidence