Opposing Counsel Has Read Your Prior Testimony. Have You?

If you testify regularly, there is a commercial industry devoted to researching you. Law firms pay $35 for a screening, a few hundred dollars for your challenge history, $625 for a 40-page profile, and thousands for deep dossiers — your prior transcripts, your Daubert record, your publications, the political donations you forgot about. The buyers are the attorneys about to cross-examine you.

Most experts have never once read their own body of testimony the way the other side does: as a pattern.

What patterns follow you from case to case

1. Your absolutes. Every "always" and "never" you've said under oath is quotable against your next nuanced opinion. (In our analysis of 11,000 real cross-examination answers, absolute language was the signature expert failure mode.)
2. Your adopted framings. Each time you opened with "correct" to counsel's characterization, you authored a sentence in their words. Those sentences compound across transcripts.
3. Your hedges and fillers. "Honestly," "to be fair," "as I said" — verbal habits read as tells when they cluster, and transcripts make clusters visible.
4. Your fee and engagement answers. The questions are standard; inconsistent answers across cases are not.
5. Your prior opinions on adjacent facts. The most dangerous impeachment isn't contradiction on the main opinion — it's the offhand answer from 2021 about a related question you don't remember being asked.

How to audit yourself like the opposition

• Collect your transcripts. You're entitled to ask retaining counsel for copies of your depositions; many experts never do.
• Count, don't skim. Reading your own testimony feels fine — everyone sounds reasonable to themselves. Counting absolutes, adoptions, and over-answers per hundred answers is what reveals the pattern.
• Compare across cases. One transcript is a performance; three are a signature. Signatures are what cross-examiners prepare against.
• Fix form, not opinions. The remedy is never to change what you honestly conclude — it's to change how you deliver it: shorter answers, your own words, precise qualifiers.

Why this matters more after 2026

Two shifts raised the stakes. First, AI has made transcript research cheap — assume every future opponent has read everything. Second, courts have signaled that materials witnesses generate with consumer AI tools may be discoverable, so casual self-review with a chatbot can create artifacts you don't want to explain. A counsel-directed audit, delivered under work-product protections, is the disciplined way to do this. (Related: don't practice your deposition on ChatGPT.)

Also useful: what experts charge in 2026 · confidential deposition practice. Metrics describe answer form only — never the substance of your opinions.