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Case Example - Expert Witness on Trial

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Okay.

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What we'd like to do now is just show you a clip from the

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movie my cousin Vinny, in which, um, the lawyer

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is going to be introducing his

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girlfriend as an expert witness.

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And we're just gonna make a few comments as

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the expert witness is providing her testimony.

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So here we go with, uh, my cousin Vinny.

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Your Honor, the defense calls as its first witness, Ms.

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Mona, Lisa Vito. Oh,

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I object, your Honor. This

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person not on the witness list.

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This witness is an expert in the field of automobiles

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and is being called to rebut the testimony of George Wilbur.

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So there you go. So you have one expert witness

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that's already been provided,

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and now you have the

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opposing counsel's expert witness being

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introduced into the case.

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Your Honor, would you please instruct the bailiff

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officer court, Ms.

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Vito, to the witness stand. Please

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Hold up your right hand.

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Do you swear to tell the truth, the whole truth, and nothing

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but the truth to help you

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God? Yeah.

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Ms. Vito, uh, you are supposed to be some kind

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of expert in automobiles, is that correct?

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Is that correct?

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You please answer the counselor's question.

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No, I hate him. The background here is

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that they've had a fight the night before and

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although she is his fiance, she's acting

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as a hostile witness to him.

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You don't want that interaction

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between your expert witness and the counsel.

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Your Honor, may I have permission to treat Ms.

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Veto as a hostile witness? You think I'm hostile now?

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Wait till you see me tonight.

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Do you two know each other? Yeah, she's my fiance.

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Well, that would certainly explain the hostility.

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This gets into a little bit of the bias

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that may occur if you're calling as a witness, your fiance.

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So in general, you wanna have a professional relationship

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with your expert witnesses

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because it opposing counsel may actually ask you,

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do you know this person on a social basis in order to try

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to impugn their credibility?

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Your Honor, I object to this witness improper foundation.

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I'm not aware of this person's qualifications.

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I'd like to, uh, dear this witness as to the extent

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of her expertise.

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Granted, Mr. Trotty may proceed. Mm-hmm.

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And this is the portion where, uh,

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and typically this is gonna be done in a medical malpractice

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case long before you get into the courtroom in terms

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of understanding what you're going to say.

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That's not the case here,

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but it's literally our opportunity

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to question you about your qualifications,

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to provide the expert opinions we're gonna ask you to give.

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And as Kelly said, this is not a time where you have

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to necessarily be humble.

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Your qualifications as an expert are important for the jury

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to believe you

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and trusts your, your judgment and your testimony.

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Oh, Ms. Vito, what's your current profession?

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I'm an out of work hairdresser.

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Out of work hairdresser. Now, in what way does

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that qualify you as an expert in automobiles?

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It doesn't. Well, in what way are you qualified?

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Well, my father was a mechanic. His father was a mechanic.

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My mother's father was a mechanic.

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My three brothers a mechanics,

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four uncles on my father's side, a mechanics.

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They know your family's obviously qualified,

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but, uh, have you ever worked as a mechanic?

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Yeah, in my father's garage, yeah.

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As a mechanic, what'd

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you do in your father's garage?

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So, um, you saw a little bit of body language there

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where she was giving him, uh, the eye.

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And, um, again, you're gonna try to be

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perfectly presentable and objective

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and not have that type of negative body language in court.

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Tuneups oil changes break free lining, engine rebuilds,

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rebuild some t****y rear end. Okay.

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Okay. But does being an ex mechanic necessarily qualify

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you as being an expert on tire marks?

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No. Thank you. Goodbye.

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Sit down and stay there until you told to leave.

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Okay? So again, you don't wanna be in a hostile

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relationship with the lawyers.

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You don't wanna be in a hostile relationship with the judge.

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It's best to probably be as proper as you can.

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Your honor, Ms.

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Vito's expertise is in general automotive knowledge.

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It is in this area that her testimony will be applicable.

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Now, if Mr. Truda wishes tovo die, a witness as

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to the extent of her expertise in this area, I'm sure

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he's gonna be more than satisfied.

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Okay. Alright. Alright.

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Now, uh, Ms.

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Vito, being an expert on general automotive knowledge,

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can you tell me what would the correct ignition timing

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be on a 1955 Bel Air Chevrolet

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with a 3 27 cubic inch engine and a full barrel carburetor?

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It's a b******t question.

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Okay. So obviously we don't wanna have, uh,

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profanity in the courtroom.

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And, uh, from the lawyer's standpoint, he is trying

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to set her up to decrease her credibility by asking her

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a question that she doesn't know the answer to.

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And her explanation of why she doesn't know the answer

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to is very useful.

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Does that mean that you can't answer it?

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It's a b******t question. It's impossible to answer.

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Impossible because you don't know the answer.

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Nobody could answer that question. Your Honor.

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I move to disqualify Ms. Vito as a expert witness.

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Can you answer the question?

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No, it is a trick question. Why is it a trick question?

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Watch this. Because Chevy didn't make a 3 27 in 55.

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The 3 27 didn't come out till 62

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and it wasn't offered in the Bel Air

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with a four barrel car till 64.

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However, in 1964,

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the correct ignition timing would be four degrees

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before top dead center.

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Okay? So as a w as a expert witness, you wanna don't want

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to be overly confident or overly cocky

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and embarrassed your, your lawyer

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or the opposing counsel lawyer.

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So this is a nice little clip from a movie we just wanted

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to show you, to give you some of the examples of

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good behavior and bad behavior as an expert witness.

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Thank you very much for your attention.

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We hope you enjoyed this presentation.

Report

Faculty

David M Yousem, MD, MBA

Professor of Radiology, Vice Chairman and Associate Dean

Johns Hopkins University

Majid Aziz Khan, MD, MBBS

Director, Non-Vascular Spine Intervention

Johns Hopkins University

Mahla Radmard, MD

Postdoctoral Research Fellow

Johns Hopkins University School of Medicine

Kelly P. Yousem, JD

Plaintiff’s Attorney

Tags

Non-Clinical