25.2 Impeachment by Character for Truthfulness, Specific Instances & Criminal Convictions
Key Takeaways
- A witness's credibility may be attacked or supported by reputation or opinion testimony about character for truthfulness, but evidence of truthful character is admissible only after that character has been attacked (FRE 608(a)).
- On cross-examination, the court may allow questions about specific instances of a witness's conduct that are probative of truthfulness, but extrinsic evidence of those instances is not admissible to attack or support character for truthfulness (FRE 608(b)).
- A conviction for any crime whose elements required proving a dishonest act or false statement must be admitted to impeach any witness (FRE 609(a)(2)); other felonies are subject to Rule 403 for ordinary witnesses and are admitted against a testifying criminal defendant only if probative value outweighs prejudicial effect to that defendant (FRE 609(a)(1)).
- If more than 10 years have passed since the conviction or release from confinement, whichever is later, the conviction is admissible only if its probative value, supported by specific facts and circumstances, substantially outweighs its prejudicial effect and the proponent gave reasonable written notice (FRE 609(b)).
- Convictions set aside by a pardon or similar procedure based on innocence or rehabilitation (absent a later felony) and most juvenile adjudications are inadmissible, while a pending appeal does not prevent use of a conviction (FRE 609(c)–(e)).
25.2 Impeachment by Character for Truthfulness, Specific Instances & Criminal Convictions
Character-based impeachment rests on the inference that a person who has shown untruthful character is more likely to lie on the stand. Because that inference risks unfair prejudice, Rules 608 and 609 carefully limit the form of proof and the kinds of past conduct that may be used.
4. Character for Untruthfulness: Reputation and Opinion (FRE 608(a))
- Calling a character witness to testify regarding the target witness's bad reputation for truthfulness or the character witness's opinion of untruthfulness.
- Form: Reputation or opinion only. The character witness cannot testify to specific instances on direct examination.
- Extrinsic Evidence: Permitted (calling the character witness is the extrinsic evidence).
5. Prior Unconvicted Bad Acts Bearing on Truthfulness (FRE 608(b))
Under FRE 608(b), a witness may be cross-examined regarding specific instances of unconvicted conduct if the conduct is probative of the character for truthfulness or untruthfulness.
- Permissible Acts: Filing a false tax return, lying on a job application, embezzlement, using a fake ID, forging a check, academic plagiarism.
- Impermissible Acts: Violent crimes, drug possession, battery, and driving infractions (not probative of truthfulness).
- THE ABSOLUTE NO-EXTRINSIC-EVIDENCE RULE: Specific instances of conduct under Rule 608(b) CANNOT be proved by extrinsic evidence. The cross-examiner is bound by the witness's answer. If the witness denies committing the act, the examiner cannot introduce documents, records, or call another witness to prove the misconduct.
6. Prior Criminal Convictions (FRE 609)
Impeaching a witness with a formal criminal conviction is governed by FRE 609, which establishes rigid balancing rules:
┌──────────────────────────────────────────────┐
│ What Type of Prior Criminal Conviction? │
└──────────────────────┬───────────────────────┘
│
┌────────────────────────┴────────────────────────┐
▼ ▼
┌───────────────────────┐ ┌───────────────────────┐
│ CRIMES OF DISHONESTY │ │ FELONIES NOT IN- │
│ OR FALSE STATEMENT │ │ VOLVING DISHONESTY │
│ (Crimen Falsi) │ └───────────┬───────────┘
└───────────┬───────────┘ │
│ ▼
▼ ┌───────────────────────┐
┌───────────────────────┐ │ Who is the Witness? │
│ MANDATORY ADMISSION │ └───────────┬───────────┘
│ Any felony or misde- │ │
│ meanor; NO judicial │ ┌───────────────────┴───────────────────┐
│ discretion/Rule 403 │ ▼ ▼
│ balancing! │ ┌───────────────────────┐ ┌───────────────────────┐
└───────────────────────┘ │ CRIMINAL DEFENDANT │ │ ANY OTHER WITNESS │
│ TESTIFYING │ │ (Civil or Criminal) │
└───────────┬───────────┘ └───────────┬───────────┘
│ │
▼ ▼
┌───────────────────────┐ ┌───────────────────────┐
│ REVERSE 403 BALANCING │ │ STANDARD RULE 403 │
│ Admissible ONLY if │ │ Admissible UNLESS │
│ probative value │ │ probative value is │
│ OUTWEIGHS prejudicial │ │ substantially out- │
│ effect to defendant │ │ weighed by prejudice │
└───────────────────────┘ └───────────────────────┘
A. Crimes of Dishonesty or False Statement (Crimen Falsi - FRE 609(a)(2))
- Definition: Any crime (felony or misdemeanor) where establishing the elements required proving a dishonest act or false statement (e.g., perjury, fraud, embezzlement, forgery, false pretenses, counterfeiting).
- Standard: MANDATORY ADMISSION. The court has no discretion to exclude a crime of dishonesty under Rule 403 (unless the 10-year staleness rule applies).
B. Felonies Not Involving Dishonesty (FRE 609(a)(1))
- Crimes punishable by death or imprisonment exceeding one year:
- When Witness is a Criminal Defendant (FRE 609(a)(1)(B)): Admissible only if the probative value outweighs its prejudicial effect to the defendant (Reverse 403 balancing; prosecution carries the burden).
- When Witness is Anyone Else (FRE 609(a)(1)(A)): Admissible under standard Rule 403 balancing (admitted unless probative value is substantially outweighed by danger of unfair prejudice).
C. The 10-Year Staleness Limit (FRE 609(b))
- If more than 10 years have elapsed since the conviction date or the release of the witness from confinement (whichever is later), the conviction is presumptively inadmissible.
- Exception: Admissible only if its probative value substantially outweighs its prejudicial effect, and the proponent provides advance written notice.
D. Juvenile Adjudications & Pardons
- Juvenile Adjudications (FRE 609(d)): Generally inadmissible against a criminal defendant. In criminal cases against other witnesses, admissible only if an adult conviction would be admissible and admission is necessary to fairly determine guilt.
- Pardons (FRE 609(c)): Inadmissible if the pardon was based on a finding of rehabilitation or innocence.
Applying Rules 608 & 609
Rule 608 Details
- Foundation for character witnesses: A reputation witness must be familiar with the witness's reputation for truthfulness in a relevant community, such as where the witness lives or works; an opinion witness must know the witness well enough to have a basis for the opinion.
- Questions about another witness's character: A character witness who testified about another witness's truthfulness may be cross-examined about specific instances of that other witness's conduct (608(b)(2)).
- Purpose matters: The extrinsic-evidence bar applies only when specific conduct is offered to prove character for truthfulness. Extrinsic evidence offered to show bias, to contradict a noncollateral point, or to prove a substantive issue is not barred by Rule 608(b).
- Good-faith basis: The examiner must have a reasonable, good-faith basis for asking about a specific act.
- Privilege preserved: By testifying, a witness does not waive the privilege against self-incrimination for questions that relate only to character for truthfulness.
Rule 609 Details
- Crimes of dishonesty or false statement: Perjury, false statement, criminal fraud, embezzlement, false pretenses, forgery, counterfeiting, and similar crimes qualify when the elements required proof—or the jury had to find—a dishonest act or false statement. Theft, robbery, and drug offenses ordinarily do not qualify, even though they are wrongful.
- Balancing factors for a defendant's prior felonies: Courts consider the impeachment value of the prior crime, how long ago it occurred, its similarity to the charged crime (greater similarity means greater risk that the jury will infer propensity), the importance of the defendant's testimony, and how central the defendant's credibility is to the case.
- Other misdemeanors: Misdemeanors that do not involve dishonesty or false statement are not admissible under Rule 609, although conduct underlying them may sometimes be asked about under Rule 608(b) if it bears on truthfulness.
- How convictions are proved: Through cross-examination or a public record. Inquiry is usually limited to the name of the crime, the date, and the sentence, rather than the underlying details.
- Pardons (609(c)): A conviction is inadmissible if it has been the subject of a pardon, annulment, or certificate of rehabilitation based on a finding that the person was rehabilitated, and the person has not been convicted of a later felony, or if the pardon or similar procedure was based on a finding of innocence.
- Pending appeals (609(e)): A conviction may be used even while an appeal is pending, and evidence that an appeal is pending is also admissible.
| Type of Conviction | Witness Is a Criminal Defendant | Any Other Witness |
|---|---|---|
| Crime requiring proof of dishonesty or false statement (felony or misdemeanor) | Must be admitted | Must be admitted |
| Other felony (punishable by death or more than one year) | Admitted only if probative value outweighs prejudicial effect to the defendant | Admitted subject to Rule 403 |
| Other misdemeanor | Not admissible under Rule 609 | Not admissible under Rule 609 |
| Any conviction more than 10 years old (from later of conviction or release) | Probative value must substantially outweigh prejudicial effect, with written notice | Same |
| Juvenile adjudication | Not admissible | In a criminal case, only if an adult conviction would be admissible and admission is necessary to fairly determine guilt |
A plaintiff brought a breach of contract action against a supplier. At trial, the supplier called a key sales manager who testified to the delivery dates. On cross-examination, the plaintiff's counsel asked the sales manager: 'Isn't it true that two years ago, you submitted an altered, falsified expense report to your former employer claiming $8,000 in personal vacations as corporate business travel?' The sales manager answered: 'That is completely false; I never altered any expense reports.' Following this denial, the plaintiff's counsel offered into evidence a certified copy of the sales manager's signed admission of the falsified expense report from an administrative arbitration proceeding with the former employer. The supplier objected. How should the court rule on the admissibility of the documentary admission?
A defendant was prosecuted in federal court for armed bank robbery. The defendant elected to testify in his own defense, claiming an alibi. On cross-examination, the prosecutor sought to impeach the defendant's credibility by introducing two prior convictions: (1) a misdemeanor conviction from four years ago for writing bad checks with intent to defraud, and (2) a felony conviction from three years ago for aggravated assault resulting in serious bodily injury. The defendant objected to both convictions under FRE 609. How should the trial court rule on the admissibility of the two prior convictions?
In an assault prosecution, a defense witness testified that the defendant was at a restaurant with him when the assault occurred. On cross-examination, the prosecutor established that the witness is the defendant's cousin and that he had consumed several drinks at the restaurant that night. The prosecutor did not offer any evidence about the witness's character. The defense then called the witness's neighbor to testify that the witness has an excellent reputation in the community for truthfulness. The prosecutor objected. How should the court rule?
In a civil trial held in 2026, the plaintiff's key witness had been convicted of perjury in 2012 and was released from prison in 2014. Before trial, the defendant gave the plaintiff written notice that it intended to impeach the witness with the conviction. At trial, the defendant sought to ask the witness about the conviction. The plaintiff objected. How should the court rule?