Maine Impeachment of Defendant's Testimony by Prior Conviction is a type of evidence that can be used in a criminal trial in the state of Maine. It allows the prosecutor to impeach the credibility of a defendant's testimony by introducing evidence of prior convictions of the defendant in order to show that the defendant may be untruthful or unreliable. This type of impeachment can be used when a defendant testifies in court and is subject to cross-examination. There are two types of Maine Impeachment of Defendant's Testimony by Prior Conviction: One is for felonies and the other is for misdemeanors. In the case of a felony, the prosecutor must show that the defendant was convicted of a felony in the past that involved dishonesty or false statement. In the case of a misdemeanor, the prosecutor must show that the defendant was convicted of a misdemeanor in the past that involved dishonesty or false statement. Both types of Maine Impeachment of Defendant's Testimony by Prior Conviction require that the conviction be proven beyond a reasonable doubt.