4. Supplement and Amend
Under Rule 26(e)(2), you are required to supplement, including correct, any information in your expert’s report and deposition not later than 30 days before trial. You should be using your regular dialogue with your expert to determine how, if at all, any new information arising out of discovery affects the expert’s report or deposition testimony. See tip 2, above.
5. Outline Your Expert’s Testimony, Including Choreography
You are the most important witness at trial. The jurors are watching you carefully, as they look to you to lead them through the facts as you perform on each promise you made to them in your opening statement. The second most important witness is your expert. Both of you are teachers in the courtroom. But there are things that an expert can do in the well of the court that you may not be permitted to do. The rules of evidence presume that most people learn through their eyes and ears, not by touch or feel (kinesthetically). Most adults, however, learn by what they see and hear. So be sure to use visuals (demonstratives) to support your auditory presentation (testimony). A presentation to the jury that is kinesthetic, even in a small way, will help to make your expert interesting. In one bench trial I had, I used a core sample of earth to allow the judge to feel how light and porous the earth was at the site in question. Get an early ruling from the court on whether your expert, or any witness for that matter, may come off the witness stand to perform a demonstration. Even if the presentation is to review a map or picture, the jury will be more tuned into an expert who is active and standing a few feet from them while teaching. Finally, agree with your expert on how he or she is to behave in the court while the jury is seated. Your expert should sit in the gallery, not with you. You should not allow the jury to see you in discussion with your expert, not even friendly chitchat. Once excused by the court, your expert should leave not only the courtroom, but the courthouse and, if possible, the city and state in which the jury is sitting. Direct your expert to leave the court without so much as a nod to you. Maintain the aura of independence that you want the jury to infer from your expert’s presentation.
6. Pyramid the Expert’s Testimony
After you have introduced your expert to the jury, including his or her credentials, begin by asking the expert for his or her conclusions first. Doing so allows you to continually emphasize the conclusions to the jury.
You: “Have you made a comparison of the handwriting on Exhibit 1 with the handwriting on Exhibit 2?”
Expert: “Yes.”
You: “And have you come to any conclusions regarding the identity of the author of each of these exhibits?”
Expert: “Yes.”
You: “Please list your conclusions for the jury.”
Once that process begins, you and your expert are now teaching. You can write each conclusion down on an easel so that the jury follows along. Your questioning should explore each conclusion, guiding the expert to explain what facts support each conclusion and by what method the expert “discovered” that conclusion. In this manner, you get to identify the conclusion, teach how the conclusion was reached, and then emphasize each conclusion: a neat triad. You may want to give the court notice of this presentation format to be sure that there will be no objection to your method, proffering conclusion first, support second. A pretrial ruling on that will help you organize and limit any objection to your expert’s presentation.
7. Three, Five, or Ten
No witness, including your expert, should deliver more than three conclusions. A triad is very satisfying to us humans; I have no idea why. Thesis, antithesis, synthesis. On your mark, get set, go. “What I tell you three times is true.” The Hunting of the Snark, Lewis Carroll. If you cannot put your expert’s conclusions into a neat triad, try limiting conclusions to five; and if that is not possible, you may use ten. But if you use ten, try to organize those ten conclusions into rough thirds. Organizing your expert’s testimony this way makes your expert more credible, understandable, and connected to the jury.
8. Set Boundaries for Testimony
By the time of trial, the court will likely have ruled on a set of facts, issues, or words that cannot be used or raised before the jury. You should be clear with your expert on what he or she may not utter before the jury. You should also work out with your expert what he or she should do in the event that, upon examination, the expert finds himself or herself having to testify in a way that the expert believes is contrary to the court’s limiting order. If you reasonably foresee a tight squeeze between your expert’s testimony and the court’s limiting order, you can try to work out an SOS phrase with the court. For example, in a case in which the court has ruled that there shall be no testimony that the plaintiff had smoked or used tobacco products, and your expert is asked a question that fairly requires him or her to account for smoking, your expert can say: “I am not sure I can answer that question fully and truthfully without some guidance from the Court on one of its earlier rulings.” In this manner, you will have diminished any potential for your expert to appear confused in answering subject to the court’s instruction while enlarging your expert’s growing reputation for veracity and respect.
9. Decide What Parts, if any, of the Trial Testimony You Would Like Your Expert to Attend
In all my years of trial work, I have never heard anyone ask for a sequestration order as to any expert. I do not prevent the expert from keeping notes, either. I recognize that those notes may be produced to my adversary; but that is a risk worth taking. I cannot think of a more efficient way of reviewing with the jury that my expert’s testimony is important and reliable than by having my adversary cross-examine my expert using my expert’s own trial notes.
10. Practice, Practice, Practice
I work with many other lawyers. Each one of us has a different take on where to draw the line between permissible dialogue with a testifying expert and impermissible coaching of an expert. My rule is simple: I do not say or do anything with an expert that I would be concerned about were it disclosed to my adversary, the court, or the jury. This includes practicing my expert’s testimony, if possible before a mock jury. In pre-pandemic days, I would organize a mock jury by offering pizza to people working in the area and have them listen and watch me put on my expert. I would then excuse the expert and talk with the mock jurors. I have always learned from that exercise. And I offer this advice to my expert:
If you are asked on cross-examination if you practiced your testimony, own that question, and remind the questioner—and the court and jury—how that practice was no different from practicing your last speech, your oral examination in defense of your dissertation, or your acceptance of an award.
At a minimum, the jury should be able to infer that it was practice that made the expert’s presentation so streamlined. The jury will appreciate the implied respect for their time.