What is the function of Rule 401 on relevance when evidence of a prior bad act is offered for identity?

• A. If the act tends to prove identity or another material issue, it may be relevant; but it must pass Rule 403 balancing for prejudice.
• B. It is always admissible regardless of prejudice.
• C. It requires the prior bad act to be proven beyond a reasonable doubt.
• D. It eliminates any possibility of prejudice through automatic exclusion.

Answer: (A)

Rule 401 asks whether the evidence is relevant by determining if it has any tendency to make a fact more or less probable. When a prior bad act is offered to prove identity, the test is whether that act tends to show who committed the current act—essentially, whether it helps link the defendant to the event through distinctive features, patterns, or circumstances. If it does tend to prove identity or another material issue, the evidence is relevant and may be admitted, though not automatically.

Even though it can be relevant, it still must pass a Rule 403 balancing. The court weighs the probative value of showing identity against potential prejudice, confusion, or waste of time. A prior bad act might unfairly sway the jury to infer guilt simply from past conduct, so the evidence can be excluded or limited if the prejudice substantially outweighs its usefulness for identifying the actor.

So the correct idea is that relevance under Rule 401 allows prior bad-act evidence to be admitted for identity if it tends to prove identity, but only after considering Rule 403 prejudice. The other options overstate or misstate admissibility rules: it’s not automatic admissibility, it isn’t required to be proven beyond a reasonable doubt for admissibility, and prejudice isn’t eliminated automatically.