Character evidence is proof of a person's general propensity or disposition (e.g., peacefulness, honesty, combativeness, dishonesty).
Purpose: To show a person acted in accordance with that character trait during an event.
General Rule: Generally not allowed to prove conduct during an event due to the risk of jurors judging based on reputation, not facts.
Opinion Evidence
Testimony from someone who knows the person.
Example: "I know Dom, and in my opinion, he's crooked."
Reputation Evidence
Testimony from someone familiar with the person's reputation in the community.
Example: "No one in the community trusts Dom."
Specific Acts Evidence
Evidence of prior crimes or conduct.
Examples: Conviction for assault, lying on a job application.
General Rule: The prosecution cannot open the character evidence door.
Exception: The defendant can introduce reputation or opinion evidence of good character for a pertinent trait to prove innocence (e.g., honesty in a forgery case).
If the defendant does so, the prosecution can then introduce reputation or opinion evidence of the defendant's bad character for that trait.
Prosecution's Rebuttal
Cross-examine the defendant's character witness with "Have you heard" or "Did you know" questions about specific bad acts.
Example: "Have you heard that May took money from the church collection plate three times last month?"
Call its own character witness to provide reputation or opinion evidence of the defendant's bad character.
Example: "I know May. She's a deceptive little weasel."
General Rule: The victim's character is generally not relevant.
Exception: If the defendant claims self-defense and alleges the victim was the aggressor, the defendant can introduce reputation or opinion evidence of the victim's bad character for violence.
Once the defendant opens this door, the prosecution can rebut with evidence of the victim's good character for peacefulness or the defendant's bad character for violence.
Homicide Cases
If the defendant introduces any evidence that the victim was the first aggressor, the prosecution can introduce character evidence of the victim's good character for peacefulness.
General Rule: Character evidence is generally inadmissible to prove a person acted in conformity with their character.
Evidence of a person's specific past wrongs or crimes can be admissible if relevant to other issues, not just to show the likelihood they committed the bad act in question.
MIMIC Rule: Evidence of past bad acts may be admissible to show:
Motive
Intent
Mistake (absence of)
Identity
Common plan or scheme
Dom is charged with stealing Aisha's moped. Dom has past convictions for stealing mopeds. Generally, these prior bad acts are inadmissible to prove his propensity for criminal behavior.
Motive Exception: If Aisha testified against Dom in a prior moped theft trial, his desire for revenge could provide a motive.
Identity Exception: If all mopeds stolen by Dom had national park decals peeled off, this could prove his identity as the thief due to the similarity in the crimes.