Expert Witness Blog

Expert insights, legal technology trends, and best practices for working with expert witnesses

The Business of Being an Expert: Marketing, Referrals, and Getting Found in a Profession That Doesn't Advertise Itself

He had been practicing retail design and store planning for five decades. He had led projects for Walmart, Target, and Macy's. He had worked across 48 of the 50 United States. And when someone typed his field of expertise into Google, his name appeared on page one. That did not happen by accident. It happened because Jerry Birnbach understood something that most professionals entering expert witness work do not: in this profession, visibility is infrastructure. And without it, the most qualified expert in any field may never receive a single call. Most expert witnesses come to the profession from careers that never required them to think about marketing. A physician in a clinical practice receives patients through a hospital referral network. An engineer at a consulting firm receives assignments from a managing partner. A professor receives speaking invitations through academic channels. None of these pathways require personal visibility or deliberate self-promotion. Expert witnessing is entirely different. The attorney who needs an expert for a specific case has no employer to call, no colleague who automatically makes the introduction. They conduct a search - through directories, through colleagues, through the internet - and the expert who appears in that search, who has a credible web presence, whose name surfaces in a professional network, is the one who gets the call. The expert who does not appear in those searches, no matter how impressive their credentials, does not get that call. This is the central challenge - and the central opportunity - of building an expert witness practice. It is a business challenge as much as a professional one, and the experts who thrive understand both dimensions.

Expert Guidance

The Accidental Expert: How Professionals Stumble Into the Witness Stand - and Why It Often Becomes Their Most Meaningful Work

He was at the hospital at the end of a long day when he noticed a colleague who seemed stressed and busy. He asked what was going on. The colleague said he had a legal case he needed to prepare for and did not have time. The physician offered to help. He thought they were talking about a patient. "No, no, no," his colleague said. "This is a legal case." Then he paused and asked: "Wait - how long have you been out of residency? I think you can do it." The physician had no idea what that meant. He had never considered expert witnessing. He did not know the profession existed in any form that applied to him. He said yes anyway, mostly because a colleague needed help. That one case - taken on a whim, as a favor - eventually grew into a practice that now runs in parallel with his clinical medicine, spans multiple jurisdictions, and represents one of the most intellectually rewarding dimensions of his career. This is not an unusual story. It is, in fact, the story that almost every successful expert witness tells when asked how they got started. Not a planned career pivot. Not a calculated market entry. An accident. A phone call, a colleague, a client who needed something unexpected, a stranger who reached out out of the blue. And then - for those who said yes - a slow realization that they had stumbled into something they were uniquely built to do.

Expert Guidance

Know Your Lane: The Expert Witness Career-Killer That Even Experienced Professionals Make

The call comes in at 9 AM. The case looks solid. The attorney needs an opinion on product design - exactly your field. You say yes, write the report, and prepare for deposition. Then, three months later, opposing counsel files a motion to exclude. Not because your methodology was flawed. Not because your credentials were thin. Because in paragraph eleven of your report, you ventured an opinion on product warnings - a discipline technically distinct from product design - and that one sentence just cost you your testimony. It sounds extreme. It is not. Across courtrooms at every level, this is how expert witness careers quietly unravel. A single sentence outside the lane. A deposition question answered too helpfully. A listing service profile that promised more than the CV could deliver. Few experts speak about this candidly, but the ones who have built the most durable practices understand it deeply. When cases fall outside your documented expertise and you take them anyway, the consequences can be swift and severe. That warning comes most bluntly from John Zeirke, an accident reconstructionist and mechanical failure analyst who appeared on Season 3, Episode 12 of On The Stand. "If a case comes your way and it's not a good fit - do not try to do it," he says. "Because those are the cases where the most experienced and qualified experts get attacked and butchered." This is the topic that almost every expert witness has heard about but few discuss candidly: scope creep, the silent career-killer. And the experts who have built the most durable practices share a discipline that runs deeper than credentials or methodology. They know exactly where their lane begins - and precisely where it ends.

Expert Guidance

AI in the Courtroom: When Technology Becomes the Evidence - and the Battleground

There is a particular kind of courtroom moment that did not exist five years ago. An expert in a multi-million-dollar dispute submits a polished, citation-rich report. Opposing counsel, in deposition, asks one question: “Doctor, would you mind pulling up the source for footnote twenty-two?” The expert reaches for the article. The article does not exist. It was never published. It was generated, with a confident-sounding title and a plausible journal name, by a large language model the expert had used to “accelerate” research. The deposition does not need a redirect. The case is already over. Variations of this scene are now playing out in jurisdictions across the United States, India, the United Kingdom, and the Gulf. The medium changes - hallucinated citations, AI-generated mathematical calculations, deepfaked video evidence, AI-curated medical records summaries, opposing counsel using ChatGPT to draft cross-examination outlines - but the underlying shift is the same. Artificial intelligence has arrived in the litigation system not as a tool the courts can adopt at their own pace, but as a force already reshaping the work of expert witnesses, the rules of evidence, and the texture of cross-examination itself. This article draws on the experiences of seven experts featured across multiple seasons of On The Stand, working in fields as diverse as evidence law, patent litigation, battery forensics, medical coding, chiropractic practice, forensic finance, and Daubert tracking. Their common message: AI is neither the salvation nor the destruction of expert testimony. It is a powerful amplifier of whatever discipline the expert brings to the work - which means it amplifies sloppiness as ruthlessly as it amplifies rigor.

Expert Guidance

Surviving Cross-Examination: Battle-Tested Strategies From Expert Witnesses Who Have Faced the Toughest Opposition

For most professionals, the phrase cross-examination triggers a specific kind of dread. You picture a sharp-suited attorney pacing a polished courtroom floor, voice rising, questions narrowing, closing in on the one sentence in your report that could unravel years of careful work. You picture the jury watching. You picture yourself stumbling on a word and wondering whether the moment is recoverable. The experts who have lived through the worst of it describe something very different. They describe cross-examination as the easy part of the job — or, more precisely, as the part that feels easy once the hard work has already been done. The hard work happens months earlier: in the scope you agreed to, in the literature you cited, in the sentences you did and did not include in your report, and in the discipline you demonstrated during a ten-hour deposition where nobody was watching except a court reporter and an opposing attorney hunting for a single loose phrase. This article draws on the experiences of six expert witnesses whose fields could not be more different — product design, pain medicine, securities valuation, medical librarianship, pediatric emergency medicine, and forensic engineering. What unites them is that each has been adversarially tested, and each has walked away with the same core conclusion: the stand is not where you win. The stand is where you simply refuse to lose.

Expert Guidance

The Race to Stay Relevant: How Expert Witnesses Keep Their Expertise From Expiring

A battery expert submitted a report. The opinion was well-reasoned. The analysis was thorough. They had testified across dozens of cases without serious incident. For the calculations, they used an AI tool—incorporated the results directly into the report, and moved on. The calculations were wrong. In a New York courtroom, opposing counsel found the errors. The expert was excluded. Not because their substantive knowledge was deficient. Not because their methodology was unsound. But because they had adopted a new tool without understanding its limitations—and because they had stopped asking the question that every expert must ask at every stage of a career: is what I know today still sufficient for what I am being asked to do? Richard Leisner, a corporate and securities expert witness who tracks Daubert challenges and exclusion decisions through his daily Expert Witness Profiler newsletter, flagged this case as emblematic of a new category of professional failure. It is not the classic failure of the expert whose substantive knowledge grew stale. It is the failure of the expert who kept up with their field but did not keep up with the tools and standards now governing how that expertise is applied and verified in court. Both failures share the same root: the assumption that expertise, once built, maintains itself. It does not. This article draws on voices from across the expert witness profession—anti-money laundering, medical devices, vocational rehabilitation, forensic finance, and corporate securities—to examine when expertise expires, what keeps it alive, and why the question matters more urgently than ever in a world where fields, regulations, and the tools of professional practice are evolving faster than any one career can comfortably track.

Expert Guidance

Storytelling on the Stand: How Narrative Transforms Expert Testimony From Forgettable to Decisive

Picture two expert witnesses testifying about the same set of facts in the same case. The first delivers a textbook-perfect presentation — methodical, thorough, technically impeccable. He cites studies, defines terms, and walks the jury step by step through every aspect of his analysis. The second expert tells a story. She describes the problem, the obstacles she encountered, the moment the truth became clear. She looks at the jury as if explaining something important to people she genuinely cares about. Both experts are equally qualified. Both opinions are equally rigorous. The first expert's testimony is all but forgotten before closing arguments. The second expert wins the case. This is not anecdote. It is the consolidated view of expert witnesses, trial attorneys, and legal scholars who have spent decades studying what actually moves juries. The most technically correct testimony in the world can fail — and the most persuasive testimony is almost always built on narrative. Understanding why, and learning how to do it, may be the single most important skill an expert witness can develop.

Expert Guidance

The Chicken-and-Egg Problem: How New Expert Witnesses Break Into a Field That Demands Experience You Don't Yet Have

Picture the moment: you are on the phone with a trial attorney. She is well-prepared, time-pressed, and looking for an expert to anchor a complex case. The conversation is going well — your credentials are strong, your field is exactly right, and you are genuinely enthusiastic. Then she asks the question.

Expert Guidance

From Expert to Educator: Making Complex Testimony Clear

From Expert to Educator: The Science and Art of Making Complex Testimony Understandable The best expert witnesses share one skill that has nothing to do with technical expertise: they are extraordinary teachers who can make the most complex ideas in their field feel obvious to a room full of non-specialists.