IMPROBATION

improbation.Scots law. An action to prove that a document is forged or otherwise false. — Also termed proper improbation.

reduction improbation.Scots law. An action in which a person who may be hurt or affected by a document can demand the document’s production in court. • The person bringing the action may ask the court either to determine the document’s effects or to nullify the document. If the document is not produced, the court can automatically declare it false or forged.

[Blacks Law 8th]