Oklahoma Presumption-Defined is a type of legal presumption that is used in Oklahoma courts. It allows certain facts to be assumed to be true unless proven otherwise. This type of legal presumption is based on Oklahoma statutory law and is often used in civil and criminal cases. There are two types of Oklahoma Presumption-Defined: rebut table and conclusive. Rebut table presumption allows a party to present evidence to prove that the fact assumed is false. Conclusive presumption does not allow for evidence to be presented to disprove the fact assumed. Both types of Oklahoma Presumption-Defined are used to speed up the legal process and make it easier for the court to reach a decision.