Maine Credibility of Witnesses is a rule of law in the state of Maine which states that the witness testimony is considered more reliable if it is provided by a credible witness with personal knowledge of the facts, or has evidence to support his/her testimony. The rule is based on the idea that a witness who is more familiar with the facts of the case is more reliable than one who is not. This concept is also referred to as "lay witness credibility". Maine Credibility of Witnesses applies to both criminal and civil cases, and can be used to evaluate the credibility of a witness. There are two types of credibility of witnesses: direct credibility and circumstantial credibility. Direct credibility is when the witness can provide direct evidence to support his/her testimony, such as eye-witness accounts or physical evidence. Circumstantial credibility is when the witness can provide circumstantial evidence, such as a statement from an expert witness or an inference from the testimony of other witnesses. The court will then assess the credibility of the witness based on the facts of the case and the witness's demeanor. The Maine Credibility of Witnesses rule has been applied in many court cases, including those involving criminal charges, civil suits, and family disputes. In some cases, the court has even allowed a witness to testify with limited credibility if it is determined that the testimony is in the best interests of justice.