Impeachment of Defendant — Prior Conviction (F.R.E. 609) (revised 2014) is a legal procedure used to discredit the credibility of a defendant in a criminal trial. The Federal Rules of Evidence (F.R.E. 609) allow for the introduction of evidence of a defendant's prior criminal convictions during a court proceeding for impeachment purposes. This rule has been revised in 2014 to include three types of impeachment of defendant-prior conviction: 1. Impeachment by Evidence of Conviction of Crime: This type of impeachment allows the introduction of evidence of a defendant's prior criminal convictions such as felonies and misdemeanors to impeach the defendant's credibility. 2. Impeachment by Evidence of a Felony Sentence: This type of impeachment allows the introduction of evidence of a defendant's past felony sentences, such as prison or probation, to impeach the defendant's credibility. 3. Impeachment by Evidence of a Misdemeanor Sentence: This type of impeachment allows the introduction of evidence of a defendant's past misdemeanor sentences, such as fines or community services, to impeach the defendant's credibility. All three types of impeachment of defendant-prior conviction are governed by Federal Rules of Evidence (F.R.E. 609).