Bar Exam (Uniform) Quiz: Lay Opinion
20 questions · exam conditions
0:00
Lay OpinionQuestion 1 of 20

A plaintiff sued an airline after his antique guitar was destroyed in baggage handling. At trial, the plaintiff testifies, "That guitar was a rare 1958 model. I inherited it from my grandfather, and I've been researching its value for years. In my opinion, it was worth at least $25,000."

Is the plaintiff's testimony about the guitar's value admissible? Select one.

Yes, because an owner is permitted to testify to the value of their own personal property.
No, because the value of a rare antique must be established by a qualified expert appraiser.
No, because the testimony is self-serving and lacks a reliable foundation without professional appraisal documents.
Yes, but only because the plaintiff established a foundation of having researched the value of similar items.
← Back to quizzes

Bar Exam (Uniform) Quiz

Bar Exam (Uniform) Quiz: Lay Opinion

Practice Lay Opinion in Bar Exam (Uniform) with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Lay Opinion, giving you a quick way to practice the rules, question types, and explanations that matter most for Bar Exam (Uniform).

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

A plaintiff sued an airline after his antique guitar was destroyed in baggage handling. At trial, the plaintiff testifies, "That guitar was a rare 1958 model. I inherited it from my grandfather, and I've been researching its value for years. In my opinion, it was worth at least $25,000."

Is the plaintiff's testimony about the guitar's value admissible? Select one.

  1. Yes, because an owner is permitted to testify to the value of their own personal property. (correct answer)
  2. No, because the value of a rare antique must be established by a qualified expert appraiser.
  3. No, because the testimony is self-serving and lacks a reliable foundation without professional appraisal documents.
  4. Yes, but only because the plaintiff established a foundation of having researched the value of similar items.
Explanation: The general rule is that an owner of property is competent to testify as to its value. This is considered a form of lay opinion testimony under FRE 701. The owner's familiarity with the item provides the basis for the opinion. While the plaintiff's research strengthens the basis, the testimony is admissible simply due to his status as the owner.

Question 2

At a murder trial, a witness for the prosecution testifies that she saw the defendant arguing with the victim an hour before the murder. During cross-examination, the defense attorney asks, "From your observation, would you say their argument was serious enough to lead to murder?"

The prosecutor objects to the defense attorney's question. How should the court rule? Select one.

  1. Overrule, because the question seeks a relevant opinion based on the witness's personal perception of the argument.
  2. Overrule, because the defense is entitled to probe the witness's testimony on cross-examination.
  3. Sustain, because the question asks for an opinion on the ultimate issue of premeditation.
  4. Sustain, because the question calls for the witness to speculate about the defendant's future actions and mental state. (correct answer)
Explanation: This question tests your understanding of proper witness examination limits and the distinction between admissible opinion testimony versus impermissible speculation. The defense attorney's question asks the witness to speculate about whether an argument she observed could lead to murder. This crosses the line from permissible opinion testimony into speculation about future conduct and the defendant's mental state. A lay witness can testify about what she observed during the argument, but asking her to predict whether it was "serious enough to lead to murder" requires her to speculate about the defendant's future actions and psychological state - matters beyond her competence as a lay witness. Option A is incorrect because while witnesses can give opinions based on personal perception, this question goes beyond describing what was observed to predicting future violent behavior. Option B misapplies the scope of cross-examination rights - while defense attorneys have broad latitude to challenge testimony, they cannot ask questions that call for speculation or incompetent testimony. Option C identifies a real concern about ultimate issues, but the problem here isn't specifically about premeditation as an ultimate issue, but rather about asking the witness to speculate beyond her observations. The court should sustain the objection because the question improperly asks for speculation about future conduct and mental state. Remember this distinction: witnesses can describe what they observed and give lay opinions about obvious inferences (like whether someone seemed angry), but they cannot speculate about future behavior or complex mental states. Watch for questions that ask witnesses to predict rather than describe.

Question 3

You are representing a plaintiff in a civil action for intentional infliction of emotional distress. At trial, you call the plaintiff's roommate to the stand. You ask the roommate to describe the plaintiff's condition in the weeks following the defendant's conduct. The roommate testifies, "She was a complete wreck. She cried all the time and seemed terrified of everything. In my view, she was suffering from severe emotional distress."

The defendant's attorney objects to the roommate's statement that the plaintiff was suffering from "severe emotional distress." How is the court most likely to rule? Select one.

  1. Sustain the objection, because the witness is offering a medical diagnosis that she is not qualified to make.
  2. Sustain the objection, because the witness is giving an opinion on the ultimate legal issue of the case.
  3. Overrule the objection, because the opinion is a rationally based perception of the plaintiff's emotional state. (correct answer)
  4. Overrule the objection, because statements about a party's emotional condition are an exception to the hearsay rule.
Explanation: A lay witness can offer an opinion about the emotional state of another person, provided it is based on personal observation. While phrasing it as "severe emotional distress" tracks the legal standard, it is fundamentally a summary of the witness's observations (crying, terrified). Courts generally permit such lay opinions as helpful shortcuts for the jury. It is not considered an impermissible legal conclusion or a medical diagnosis in this context.

Question 4

In a will contest, the challengers assert the testator lacked testamentary capacity. A neighbor who knew the testator for 40 years is called to testify. The neighbor states, "For the last six months of his life, he was very confused. He often didn't recognize me and would talk about long-dead relatives as if they were alive. In my opinion, he was no longer of sound mind."

Is the neighbor's opinion that the testator was not "of sound mind" admissible? Select one.

  1. No, because determining a person's mental state is a medical issue requiring expert testimony from a psychiatrist or psychologist.
  2. Yes, because a lay witness with sufficient personal knowledge of a person can give an opinion on that person's apparent sanity. (correct answer)
  3. No, because "sound mind" is a legal standard, and the testimony is therefore an impermissible legal conclusion.
  4. Yes, but only if the court first formally qualifies the neighbor as a character witness for the testator.
Explanation: When you encounter questions about lay witness testimony regarding mental state, remember that the Federal Rules of Evidence allow non-expert witnesses to give opinion testimony in certain circumstances, particularly when they have extensive personal knowledge of the subject. The neighbor's opinion testimony is admissible because lay witnesses who know someone well can testify about that person's apparent mental condition based on their observations. Here, the neighbor knew the testator for 40 years and observed specific behaviors indicating confusion and disorientation. The neighbor isn't making a clinical diagnosis but rather describing observable conduct and drawing a rational inference from those observations—exactly what Rule 701 permits for lay opinion testimony. Let's examine why the other options are incorrect. Choice A is wrong because mental state observations don't always require expert testimony—lay witnesses can testify about what they personally observed and the reasonable inferences from those observations. Choice C incorrectly characterizes the testimony; while "testamentary capacity" is indeed a legal standard, "sound mind" as used here describes the neighbor's lay observation of the testator's apparent mental condition, not a legal conclusion about capacity. Choice D is incorrect because there's no requirement to formally qualify someone as a "character witness"—the neighbor is simply a fact witness testifying about personal observations. Study tip: Remember that lay witnesses can give opinion testimony about mental state if they have sufficient personal knowledge and their opinions are rationally based on their perceptions. The key is distinguishing between permissible lay observations and impermissible legal conclusions.

Question 5

A plaintiff sued his former employer for age discrimination. At trial, the plaintiff calls a former coworker to the stand. The coworker testifies, "Our manager constantly made jokes about the plaintiff's age and gave all the best assignments to the younger employees. It was obvious that the manager was discriminating against him because of his age."

The defense objects to the statement that the manager was "discriminating against him." Is this portion of the testimony admissible? Select one.

  1. Yes, because it is a rational inference drawn from the coworker's personal observations in the workplace.
  2. No, because the statement is an improper legal conclusion and is not helpful to the trier of fact. (correct answer)
  3. Yes, because lay witnesses are permitted to testify about ultimate issues such as discriminatory intent.
  4. No, because the testimony is inadmissible character evidence against the manager.
Explanation: When evaluating witness testimony, you need to distinguish between admissible factual observations and inadmissible legal conclusions. Lay witnesses can testify about what they personally observed, but they generally cannot offer legal conclusions that invade the province of the jury. The correct answer is B because the statement "the manager was discriminating against him" is an improper legal conclusion. While the coworker can testify about the specific facts she observed (age-related jokes, assignment patterns), concluding that these actions constitute "discrimination" requires applying legal standards to facts—which is the jury's job, not the witness's. This type of conclusory testimony doesn't help the trier of fact; instead, it usurps their role in determining whether the observed conduct meets the legal definition of discrimination. Looking at the wrong answers: A is incorrect because while rational inferences from observations are sometimes allowed, legal conclusions about discrimination go beyond permissible lay opinion. C misapplies the ultimate issue rule—while witnesses can testify about some ultimate issues, they cannot offer legal conclusions about whether conduct violates specific legal standards. D is wrong because this isn't character evidence; the coworker is testifying about specific acts relevant to the discrimination claim, not the manager's general character for discrimination. Study tip: When you see testimony that sounds like it could come from a legal brief or court opinion, ask yourself: "Is this witness acting like a lawyer or judge?" If so, it's likely an improper legal conclusion that should be excluded.

Question 6

You are representing the defendant in a breach of contract action. The plaintiff, a building contractor, claims your client failed to make a final payment. Your client's defense is that the work was incomplete. You call a neighbor to the stand who observed the construction. The neighbor testifies, "I saw the contractor's crew leave the site on May 1st, and they never came back. It looked to me like the job wasn't finished; the front walkway wasn't even paved."

Is the neighbor's testimony that "the job wasn't finished" admissible? Select one.

  1. No, because whether a construction job is complete is a technical matter that requires expert testimony.
  2. No, because the neighbor is not a party to the contract and has no basis for opining on its completion.
  3. Yes, because it is a rational conclusion based on the witness's personal observations of the property. (correct answer)
  4. Yes, but only the factual portion about the walkway is admissible; the opinion portion is not.
Explanation: The neighbor's opinion that the job was not finished is admissible lay opinion under FRE 701. It is rationally based on his personal perception (seeing the crew leave, observing the unpaved walkway) and is helpful to the jury in determining a key fact in issue. This is a type of "collective facts" or shortcut opinion that lay witnesses are permitted to give.

Question 7

In a copyright infringement lawsuit, the plaintiff, a computer programmer, testifies. She has not been qualified as an expert witness. She states, "I personally wrote the 50,000 lines of source code for my software. I reviewed the defendant's source code, and thousands of lines are identical to mine, right down to my unique commenting style. That is my code."

Is the plaintiff's testimony that the code in the defendant's product is "my code" admissible? Select one.

  1. No, because analyzing and comparing source code for copyright infringement is a highly technical matter requiring expert testimony.
  2. No, because the testimony is a self-serving opinion on the ultimate issue of infringement.
  3. Yes, because as the author, her identification of her own work is permissible lay opinion based on familiarity. (correct answer)
  4. Yes, but only if the court also appoints a neutral expert to verify her claim.
Explanation: This testimony is admissible as a lay opinion. The plaintiff's identification of her own work is analogous to a witness identifying their own handwriting. It is based on particularized knowledge and familiarity, not on specialized skill that would require qualification as an expert under FRE 702. She is testifying from personal knowledge about the code she created.

Question 8

In a will contest, the challengers claim that the testator signed the will under duress. They call the testator's former business partner to testify. The partner is shown the signature on the will and is asked if she recognizes it. The partner testifies, "I worked with him for thirty years and saw him sign documents almost every day. That signature looks forced and shaky; it's not his normal, confident signature."

Is the partner's testimony about the signature admissible? Select one.

  1. No, because authenticating a signature on a contested document requires testimony from a forensic handwriting expert.
  2. No, because the testimony speculates on the testator's state of mind, namely that he felt "forced."
  3. Yes, because a lay witness can identify handwriting based on familiarity not acquired for purposes of litigation. (correct answer)
  4. Yes, because the best evidence rule allows for testimony about the contents of a writing when the original is before the court.
Explanation: FRE 901(b)(2) and FRE 701 permit a lay witness to give an opinion identifying a person's handwriting if the witness has familiarity with it that was not acquired for the current litigation. The business partner's thirty years of experience provide a strong foundation for her opinion on the signature's authenticity. The description of it as "forced and shaky" is a permissible characterization based on her perception and familiarity.

Question 9

A truck driver is sued for negligence after his truck collided with a car. A witness to the accident, who is a mechanic but is not tendered as an expert, testifies for the plaintiff. The witness states, "Right before the crash, I heard a high-pitched metallic screeching. As a mechanic, I recognized that sound as the likely failure of an air brake compressor."

Is the mechanic's testimony about the cause of the sound admissible? Select one.

  1. No, because identifying the specific cause of a mechanical failure is based on specialized knowledge requiring expert testimony.
  2. No, because the witness has not been qualified by the court as an expert in truck mechanics under Rule 702.
  3. Yes, because the testimony is based on the witness's personal perception of the sound he heard at the scene.
  4. Yes, because the witness's background as a mechanic provides a rational basis for his opinion about the sound. (correct answer)
Explanation: This is a borderline question, but the better view is that the testimony is admissible lay opinion under FRE 701. The opinion is based on the witness's perception (hearing the sound). The reference to his mechanical experience explains the basis for his perception, rather than converting it into an expert opinion requiring formal qualification under FRE 702. The testimony is helpful to the jury in understanding the nature of the sound the witness heard.

Question 10

In a fraud trial, the prosecutor calls the defendant's former administrative assistant. The prosecutor asks about a meeting where the defendant allegedly lied to investors. The assistant testifies, "When the defendant was telling them the company had secured a major patent, he avoided eye contact and was sweating. It was clear to me that he knew he was lying."

The defense objects to the assistant's statement, "It was clear to me that he knew he was lying." Is this statement admissible? Select one.

  1. Yes, because it is a rational inference based on the witness's observations of the defendant's demeanor.
  2. No, because a lay witness's opinion about the mental state or knowledge of another person is inadmissible speculation. (correct answer)
  3. No, because it is improper for one witness to give an opinion on the credibility of another person's statement.
  4. Yes, because the witness had a close working relationship with the defendant and had a basis for knowing his mannerisms.
Explanation: While a lay witness can testify to their perceptions of another person's demeanor (e.g., "he was sweating and avoided eye contact"), they generally cannot opine on that person's internal mental state, such as what they knew or believed. Stating that the defendant "knew he was lying" is an impermissible opinion on his state of mind that goes beyond a rational inference from perception and enters the realm of speculation.

Question 11

A plaintiff sued an airline after his antique guitar was destroyed in baggage handling. At trial, the plaintiff testifies, "That guitar was a rare 1958 model. I inherited it from my grandfather, and I've been researching its value for years. In my opinion, it was worth at least $25,000."

Is the plaintiff's testimony about the guitar's value admissible? Select one.

  1. Yes, because an owner is permitted to testify to the value of their own personal property. (correct answer)
  2. No, because the value of a rare antique must be established by a qualified expert appraiser.
  3. No, because the testimony is self-serving and lacks a reliable foundation without professional appraisal documents.
  4. Yes, but only because the plaintiff established a foundation of having researched the value of similar items.
Explanation: The general rule is that an owner of property is competent to testify as to its value. This is considered a form of lay opinion testimony under FRE 701. The owner's familiarity with the item provides the basis for the opinion. While the plaintiff's research strengthens the basis, the testimony is admissible simply due to his status as the owner.

Question 12

In a prosecution for arson, the prosecutor calls a neighbor who witnessed the fire. The neighbor testifies, "I was woken up by a loud explosion. I ran to my window and saw the defendant's house engulfed in flames. I immediately smelled a strong chemical odor, like an accelerant was used."

The defense objects to the witness's statement that the odor was "like an accelerant was used." Is this testimony admissible? Select one.

  1. No, because identifying a chemical accelerant requires forensic expertise and laboratory analysis.
  2. No, because the statement is unduly prejudicial and speculates as to the cause of the fire.
  3. Yes, because a lay witness can testify about smells they personally perceived.
  4. Yes, but only if the prosecution can first establish that the witness is familiar with the smell of common accelerants. (correct answer)
Explanation: While lay witnesses can testify about common smells (like gasoline or smoke), identifying a smell as an "accelerant" implies some specialized knowledge. For the opinion to be rationally based on the witness's perception, a foundation must be laid showing the witness's familiarity with such smells (e.g., from a hobby or prior job). Without this foundation, the opinion is speculative. Thus, admissibility depends on establishing that foundation.

Question 13

In a prosecution for assault, the prosecution calls a bartender who served the defendant drinks for several hours before the alleged assault occurred. The prosecutor asks the bartender to describe the defendant's condition. The bartender testifies, "He had consumed at least six whiskeys, his speech was heavily slurred, he was stumbling, and in my opinion, he was severely intoxicated."

Is the bartender's testimony that the defendant was "severely intoxicated" admissible? Select one.

  1. No, because this is an improper medical conclusion that requires expert testimony from a physician.
  2. No, because it is inadmissible character evidence suggesting the defendant is a heavy drinker.
  3. Yes, because opinions about intoxication are within the common experience of lay witnesses and are based on personal observation. (correct answer)
  4. Yes, because as a bartender, the witness has specialized knowledge and can be considered a de facto expert on intoxication.
Explanation: A lay witness may testify in the form of an opinion that is rationally based on their perception. A person's state of intoxication is a matter of common knowledge and observation. The bartender's opinion was based on personally observing the defendant's appearance, speech, and behavior. Therefore, it is admissible lay opinion testimony under FRE 701.

Question 14

In a will contest, the challengers assert the testator lacked testamentary capacity. A neighbor who knew the testator for 40 years is called to testify. The neighbor states, "For the last six months of his life, he was very confused. He often didn't recognize me and would talk about long-dead relatives as if they were alive. In my opinion, he was no longer of sound mind."

Is the neighbor's opinion that the testator was not "of sound mind" admissible? Select one.

  1. No, because determining a person's mental state is a medical issue requiring expert testimony from a psychiatrist or psychologist.
  2. Yes, because a lay witness with sufficient personal knowledge of a person can give an opinion on that person's apparent sanity. (correct answer)
  3. No, because "sound mind" is a legal standard, and the testimony is therefore an impermissible legal conclusion.
  4. Yes, but only if the court first formally qualifies the neighbor as a character witness for the testator.
Explanation: When you encounter questions about lay witness testimony regarding mental state, remember that the Federal Rules of Evidence allow non-expert witnesses to give opinion testimony in certain circumstances, particularly when they have extensive personal knowledge of the subject. The neighbor's opinion testimony is admissible because lay witnesses who know someone well can testify about that person's apparent mental condition based on their observations. Here, the neighbor knew the testator for 40 years and observed specific behaviors indicating confusion and disorientation. The neighbor isn't making a clinical diagnosis but rather describing observable conduct and drawing a rational inference from those observations—exactly what Rule 701 permits for lay opinion testimony. Let's examine why the other options are incorrect. Choice A is wrong because mental state observations don't always require expert testimony—lay witnesses can testify about what they personally observed and the reasonable inferences from those observations. Choice C incorrectly characterizes the testimony; while "testamentary capacity" is indeed a legal standard, "sound mind" as used here describes the neighbor's lay observation of the testator's apparent mental condition, not a legal conclusion about capacity. Choice D is incorrect because there's no requirement to formally qualify someone as a "character witness"—the neighbor is simply a fact witness testifying about personal observations. Study tip: Remember that lay witnesses can give opinion testimony about mental state if they have sufficient personal knowledge and their opinions are rationally based on their perceptions. The key is distinguishing between permissible lay observations and impermissible legal conclusions.

Question 15

At a murder trial, a witness for the prosecution testifies that she saw the defendant arguing with the victim an hour before the murder. During cross-examination, the defense attorney asks, "From your observation, would you say their argument was serious enough to lead to murder?"

The prosecutor objects to the defense attorney's question. How should the court rule? Select one.

  1. Overrule, because the question seeks a relevant opinion based on the witness's personal perception of the argument.
  2. Overrule, because the defense is entitled to probe the witness's testimony on cross-examination.
  3. Sustain, because the question asks for an opinion on the ultimate issue of premeditation.
  4. Sustain, because the question calls for the witness to speculate about the defendant's future actions and mental state. (correct answer)
Explanation: This question tests your understanding of proper witness examination limits and the distinction between admissible opinion testimony versus impermissible speculation. The defense attorney's question asks the witness to speculate about whether an argument she observed could lead to murder. This crosses the line from permissible opinion testimony into speculation about future conduct and the defendant's mental state. A lay witness can testify about what she observed during the argument, but asking her to predict whether it was "serious enough to lead to murder" requires her to speculate about the defendant's future actions and psychological state - matters beyond her competence as a lay witness. Option A is incorrect because while witnesses can give opinions based on personal perception, this question goes beyond describing what was observed to predicting future violent behavior. Option B misapplies the scope of cross-examination rights - while defense attorneys have broad latitude to challenge testimony, they cannot ask questions that call for speculation or incompetent testimony. Option C identifies a real concern about ultimate issues, but the problem here isn't specifically about premeditation as an ultimate issue, but rather about asking the witness to speculate beyond her observations. The court should sustain the objection because the question improperly asks for speculation about future conduct and mental state. Remember this distinction: witnesses can describe what they observed and give lay opinions about obvious inferences (like whether someone seemed angry), but they cannot speculate about future behavior or complex mental states. Watch for questions that ask witnesses to predict rather than describe.

Question 16

In a prosecution for arson, the prosecutor calls a neighbor who witnessed the fire. The neighbor testifies, "I was woken up by a loud explosion. I ran to my window and saw the defendant's house engulfed in flames. I immediately smelled a strong chemical odor, like an accelerant was used."

The defense objects to the witness's statement that the odor was "like an accelerant was used." Is this testimony admissible? Select one.

  1. No, because identifying a chemical accelerant requires forensic expertise and laboratory analysis.
  2. No, because the statement is unduly prejudicial and speculates as to the cause of the fire.
  3. Yes, because a lay witness can testify about smells they personally perceived.
  4. Yes, but only if the prosecution can first establish that the witness is familiar with the smell of common accelerants. (correct answer)
Explanation: While lay witnesses can testify about common smells (like gasoline or smoke), identifying a smell as an "accelerant" implies some specialized knowledge. For the opinion to be rationally based on the witness's perception, a foundation must be laid showing the witness's familiarity with such smells (e.g., from a hobby or prior job). Without this foundation, the opinion is speculative. Thus, admissibility depends on establishing that foundation.

Question 17

In a trial for robbery, the prosecution's key witness identifies the defendant as the perpetrator. The defendant's attorney calls an alibi witness, the defendant's mother, to the stand. The mother testifies, "My son was with me at home the entire night of the robbery." The prosecutor then asks, "In your opinion, is the prosecution's key witness lying about seeing your son?"

Is the prosecutor's question to the mother permissible? Select one.

  1. Yes, because a witness's credibility is always a relevant issue in a trial.
  2. Yes, because the mother has personal knowledge of her son's whereabouts, which forms a basis for her opinion.
  3. No, because asking one witness to comment on the truthfulness of another witness's testimony is improper. (correct answer)
  4. No, because the question calls for an answer that would be unfairly prejudicial to the prosecution.
Explanation: It is improper for an attorney to ask a witness to give an opinion on the credibility or truthfulness of another witness. Such testimony is not considered helpful to the jury, as it invades their core function of assessing credibility. The jury hears the conflicting testimony and decides for itself who to believe. Therefore, the question is improper, and an objection should be sustained.

Question 18

You are defending a client charged with battery. An eyewitness for the prosecution testifies about a verbal altercation that preceded the physical contact. The prosecutor asks, "What was the defendant's tone of voice?" The witness responds, "He sounded extremely aggressive and threatening, like he was about to explode with rage."

Is the witness's description of the defendant's tone of voice admissible? Select one.

  1. No, because it is improper character evidence intended to portray the defendant as a violent person.
  2. No, because the testimony is speculative as to the defendant's internal emotional state.
  3. Yes, because it is a permissible lay opinion based on the witness's perception of the defendant's voice and demeanor. (correct answer)
  4. Yes, but only if the witness is an expert in vocal analysis or psychology.
Explanation: A lay witness is permitted to offer an opinion characterizing what they heard, such as a person's tone of voice. Describing a tone as "aggressive and threatening" is a helpful shortcut for conveying the witness's sensory perception to the jury. It is not considered improper speculation about the defendant's internal state but rather a description of his outward manifestation, and it is not character evidence because it describes his state at a specific moment.

Question 19

A witness saw a two-car collision at an intersection on a clear, dry day. In a subsequent negligence lawsuit, the witness is called to testify. The witness did not see the speedometer of the defendant's car but has been a licensed driver for 20 years. The plaintiff's attorney asks the witness to estimate the speed of the defendant's car just before the impact. The witness testifies, "The car was flying down the road; I'd say it was going at least 60 miles per hour in a 30-mile-per-hour zone."

Is the witness's testimony regarding the car's speed admissible? Select one.

  1. Yes, because it is rationally based on the witness's perception and is helpful to the jury's understanding of the events. (correct answer)
  2. No, because estimating the speed of a vehicle requires specialized knowledge and must be provided by an accident reconstruction expert.
  3. No, because the witness is offering an opinion on an ultimate issue in the case, which is whether the defendant was negligent.
  4. Yes, but only if the witness can provide a foundation of prior experience in accurately estimating vehicle speeds.
Explanation: Under Federal Rule of Evidence 701, a lay witness may offer opinion testimony if it is (a) rationally based on the witness's perception, (b) helpful to determining a fact in issue, and (c) not based on scientific, technical, or other specialized knowledge. A layperson's estimate of a vehicle's speed is a classic example of admissible lay opinion, as it is based on the perception of the witness and helpful to the jury. It does not require expert qualification.

Question 20

A defendant is being prosecuted for making a threatening phone call. The victim testifies that she received the call from an unknown number. The prosecutor asks, "Did you recognize the voice?" The victim responds, "Yes, I am certain it was the defendant. We dated for two years and I've spoken with him on the phone hundreds of times."

Is the victim's voice identification testimony admissible? Select one.

  1. No, because voice identification from a phone call requires corroboration by an expert in voiceprint analysis.
  2. No, because the victim's prior relationship with the defendant makes her testimony unfairly prejudicial.
  3. Yes, because an opinion identifying a voice is admissible if based on hearing the voice at any time under circumstances that connect it with the alleged speaker. (correct answer)
  4. Yes, but only if the phone call was recorded and the recording is played for the jury to make its own comparison.
Explanation: Under FRE 901(b)(5), a witness can identify a voice based on familiarity gained at any time. The victim's extensive prior contact with the defendant's voice provides a solid foundation for her lay opinion testimony identifying him as the caller. This is a standard and permissible form of identification evidence.