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EXPERT WITNESS RESEARCH
Expert Witness Search and Expert Witness Database Pricing for Westlaw, Lexis and Daubert Tracker
What it costs a US litigation firm to vet its own expert or an opposing one before a deposition or a Rule 702 motion, read from each vendor's own fee schedule and price sheets.
US firms · Research tool, not legal advice
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The short answer
Expert witness search means pulling an expert's prior testimony, challenge history, publications and discipline before you hire or depose them. The cheapest published subscription is Daubert Tracker at 295 dollars a year for one user, with documents at 7.50 dollars each. Lexis sells done-for-you expert reports with no subscription (95 dollars for a challenge report, 164 for a testimonial history on its price sheet) and Context expert reports at 99 dollars out of plan. Westlaw Profiler runs Expert Challenge and Expert Evaluator reports, priced at 143 and 100 dollars on Thomson Reuters' published 2026 government schedule. DRI members search 65,000+ experts as a membership benefit.
$295
a year, the Daubert Tracker individual subscription (2024 fee schedule)
$95
a Lexis Enhanced Challenge Report with opinions, no subscription
$143
a Westlaw Expert Challenge Report on the published 2026 schedule
65,000+
plaintiff and defense experts in the DRI database for members
Side by side
Every expert witness search route a US firm can buy, and what it costs
Daubert Tracker from its fee schedule (archived November 2024; the live page sits behind a bot check), Lexis from its Expert Research On-Demand page, price sheet and 2026 law firm price schedule, Westlaw from the Profiler help page and Thomson Reuters' Schedule A effective February 1, 2026, DRI from its expert witness page. Checked October 3, 2026.
| Route | What you get | Published price | Best for |
|---|---|---|---|
| Daubert Tracker (MDEX Online) | A database of Rule 702 and Daubert challenges by expert and discipline, linked briefs, opinions and transcripts, a weekly case update | $295 a year for one user, or $25 for a 2 hour session. Documents $7.50 with a subscription, $15 without. Firms of 2 from $450 a year | Any litigator who challenges or defends experts more than a few times a year |
| Lexis Expert Research On-Demand | Researchers build the report for you: testimonial history, challenge history, licensing discipline, articles, transcripts | Pay as you go, no subscription. Price sheet: $95 challenge report, $164 testimonial history, $40 license discipline, $63 per transcript | One opposing expert you need fully vetted in a few business days |
| Lexis+ Context and expert content | Context expert reports inside Lexis+, expert witness analysis in Premium Litigation content | $99 per Context Experts report and $100 per premium litigation document out of plan (2026 schedule) | Firms already on Lexis+ that need a quick read on an expert |
| Westlaw Profiler | Expert Challenge and Expert Evaluator reports, expert profiles, depositions, trial transcripts and court-filed CVs | Out-of-plan prompt before any charge. 2026 government schedule: $143 challenge report, $100 evaluation report, $95 per expert document | Firms already on Westlaw that confirm Profiler content is in their plan |
| DRI Expert Witness Database | 65,000+ plaintiff and defense experts with documents, on Courtroom Insight | Included in DRI membership; Courtroom Insight extras cost more | Defense lawyers who are, or will become, DRI members |
| CaseSearch | Published decisions that apply Rule 702 and state expert standards to a kind of expert or methodology | $49 a month, or $24 a month billed yearly | Briefing the admissibility standard in your court and finding the rulings that decide it |
Prices are the vendors' own published figures where they publish one, and they change. The Lexis per-report figures come from the price sheet LexisNexis still hosts, dated October 2016; its live page quotes on request. Westlaw's figures come from its state and local government schedule; law firm rates may differ. CaseSearch does not hold transcripts, CVs or unreported challenges. A research tool, not legal advice.
What is the best expert witness search tool for a small firm?
For a solo or small litigation firm that handles experts in most cases, Daubert Tracker is the cheapest standing subscription in this comparison. Its fee schedule lists an individual annual subscription at 295 dollars, which includes unlimited searching of the challenge database, a weekly case update and a half-price rate on documents (7.50 dollars instead of 15). A firm of two pays 450 dollars a year in total, three to five users 675, six to ten 1,000. If you only need it once, a two-hour session costs 25 dollars.
If you need one opposing expert taken apart before a deposition and you do not want to do the digging yourself, Lexis Expert Research On-Demand is the cleaner buy. Researchers pull the testimonial history, challenge history, licensing discipline and publications and send you a report, with no subscription. Firms already on Westlaw or Lexis+ should check what their plan includes before buying anything else, because both platforms carry expert profiles and charge per report only when the content sits outside the plan.
Challenges are a regular job
Daubert Tracker, $295 a year for one user.
One expert, done for you
Lexis Expert Research On-Demand, pay per report.
Already on Westlaw
Profiler, check the plan before the out-of-plan prompt.
Defense practice
DRI membership, 65,000+ experts.
How much does Daubert Tracker cost?
Daubert Tracker's fee schedule, as archived in November 2024, lists an individual annual subscription at 295 dollars, a two-hour session at 25 dollars and a half-hour session at 10. Group subscriptions for firms and associations are annual only: 450 dollars for two members, 675 for three to five, 1,000 for six to ten, and from 1,250 dollars plus 25 per user for eleven to fifty. Documents already in the system cost 7.50 dollars with a subscription and 15 without; the weekly case update is included with a subscription or 49 dollars without.
The live ordering page sits behind a bot check, so confirm the figure before you buy. Some professional associations negotiate member discounts, and the data is also licensed on Lexis. Our <a href="/blog/daubert-tracker-pricing">Daubert Tracker pricing guide</a> works through when the subscription pays for itself against per-report buying.
Individual
$295 a year, or $25 for 2 hours, $10 for half an hour.
Firms
$450 for 2 users, $675 for 3 to 5, $1,000 for 6 to 10.
Documents
$7.50 with a subscription, $15 without.
How do you search for expert witnesses on Westlaw?
Open Profiler from the specialty areas on the Westlaw homepage and search by the expert's name, location or area of expertise. Each profile carries tabs for references, reports, testimonial history and publications. The two reports that matter are Expert Challenge, which shows how judges ruled when the expert's testimony was challenged, and Expert Evaluator, which summarizes litigation experience, prior appearances, verdicts and past clients. The References tab pulls testimony, trial transcripts, dockets and court-filed resumes.
Thomson Reuters says that if you open content in these reports that is not in your subscription, Westlaw shows a notice and charges nothing unless you continue. Its published state and local government schedule, effective February 1, 2026, prices an Expert Challenge Report at 143 dollars and an Expert Evaluation Report at 100, with expert depositions, reports and trial transcripts at 95 dollars a document. The law firm order pages do not name Profiler as a line item, so ask for it in writing. Our <a href="/westlaw-pricing">Westlaw pricing</a> page has every configured plan.
Where
Profiler, in the specialty areas of the homepage.
Reports
Expert Challenge and Expert Evaluator.
Out of plan
$143 and $100 per report on the 2026 government schedule.
Does Lexis have an expert witness search?
Yes, two ways. Inside Lexis+, Context builds analytical reports on experts from their prior testimony and challenges, and the expert witness analysis content sits in the Premium Litigation library with briefs, pleadings and motions. LexisNexis' 2026 law firm price schedule charges 99 dollars per Context Experts report and 100 dollars per Premium Litigation document when they fall outside your plan.
Outside the platform, Lexis Expert Research On-Demand is a research service: you name the expert, an analyst builds the file, and the report arrives in a few business days with pay-as-you-go pricing and no subscription. The price sheet LexisNexis still hosts, dated October 2016, lists a Testimonial History at 164 dollars, an Enhanced Challenge Report with opinions at 95, State License Discipline at 40, transcripts at 63 each, Attorney or Firm Case Involvement at 138 and custom database research at 220. The live page now quotes on request. See <a href="/lexisnexis-pricing">LexisNexis pricing</a> for the plans themselves.
Inside Lexis+
Context Experts, $99 per report out of plan.
Done for you
Expert Research On-Demand, no subscription.
Price sheet
$95 challenge report, $164 testimonial history.
What should an expert witness background check include?
Five things, in this order. Prior challenges first: every ruling where a court admitted, limited or excluded the expert, and why. Then testimonial history, meaning the cases and the side they testified for, which exposes a hired-gun pattern. Then transcripts of prior depositions and trial testimony, because inconsistent opinions on the same methodology are the strongest cross-examination material you will find. Then licensing and discipline. Then publications, including anything they wrote that contradicts what they will say in your case.
The vendors cover these unevenly. Daubert Tracker is built around the first item. The Lexis research service and Westlaw Profiler cover all five, at a per-report cost. A verdict database adds the outcome of cases the expert testified in; our <a href="/jury-verdict-research">jury verdict research</a> comparison prices those.
1. Prior challenges
Admitted, limited or excluded, and the reasoning.
2. Testimonial history
Which side, how often, in what kind of case.
3. Transcripts
Prior opinions on the same method.
4. License and discipline
Board actions in every state licensed.
5. Publications
Anything that contradicts the current opinion.
How do courts decide whether to exclude an expert under Rule 702?
In federal court the proponent has to show, more likely than not, that the expert is qualified, that the testimony will help the jury, that it rests on sufficient facts or data, that it comes from reliable principles and methods, and that the opinion reflects a reliable application of those methods to the case. The December 1, 2023 amendment to Rule 702 made the preponderance standard explicit and stressed that the reliable-application requirement is a question for the judge, not something left to cross-examination.
States split. Many follow Daubert, some still apply Frye general acceptance, and several use their own test. So the record on one expert is only half the job. The other half is the case law in your court on that kind of expert and that methodology, which is what decides your motion.
Federal
Rule 702 as amended December 1, 2023, preponderance standard.
States
Daubert, Frye or a state-specific test.
What wins
Rulings in your court on the same methodology.
Where CaseSearch fits in expert witness research
An expert database tells you about the person. It does not brief the standard. When you draft a Daubert motion or the opposition to one, you need the decisions in your circuit or state that admitted or excluded the same kind of opinion, for example accident reconstruction based on software simulation, or a damages model built on a regression with a short sample, and you need to know those decisions are still good law after the 2023 amendment.
That is the job CaseSearch is built for. Ask in plain English, for instance whether Ninth Circuit district courts have excluded a biomechanical engineer's injury causation opinion under Rule 702, and CaseSearch returns the on-point decisions with their citations, the holding in plain language and a good-law signal. One real question at the top of this page needs no account. After that it is 49 dollars a month, or 24 a month billed yearly.
Expert database
The person, the transcripts, the challenge history.
CaseSearch
The rulings on that methodology in your court.
Together
A motion that cites both the record and the law.
Frequently asked
Questions buyers ask about expert witness search
What is an expert witness search?
An expert witness search is the research a litigator runs on an expert before hiring or deposing them: prior testimony and the side they testified for, rulings on challenges to their opinions, transcripts, licensing discipline and publications. It is done through databases like Daubert Tracker, Westlaw Profiler and Lexis, or through a paid research service.
How much does Daubert Tracker cost?
Daubert Tracker's fee schedule lists an individual annual subscription at 295 dollars, a two-hour session at 25 dollars and firm subscriptions from 450 dollars a year for two users. Documents cost 7.50 dollars each with a subscription and 15 without. Confirm on the live page before buying.
Is there a free expert witness database?
Not one with challenge histories and transcripts. Directories that list experts for hire are free to search, and DRI gives its members access to 65,000+ experts as part of membership, but rulings on challenges, transcripts and testimonial histories come from paid sources such as Daubert Tracker, Lexis and Westlaw.
How do you search for expert witnesses on Westlaw?
Open Profiler from the homepage specialty areas, search by name, location or expertise, and open the Expert Challenge or Expert Evaluator report. Westlaw warns you before charging for content outside your plan; the 2026 government schedule prices the reports at 143 and 100 dollars.
Does Lexis have expert witness research?
Yes. Lexis+ has Context expert reports, 99 dollars each out of plan, and LexisNexis runs Expert Research On-Demand, a pay-as-you-go research service with no subscription that delivers testimonial history, challenge reports and transcripts in a few business days.
How do I compare expert witness data providers?
Compare them on four things: what each record contains (prior testimony, Daubert and Rule 702 challenge history, verdicts, discipline), how you pay (Daubert Tracker at 295 dollars a year, Lexis expert reports at 95 dollars or 99 out of plan, Westlaw Profiler inside your plan), how current the challenge data is, and whether the provider shows the court ruling behind each challenge so you can read it yourself.
What is the difference between expert directories and custom search firms?
A directory lists experts who want engagements; you search it yourself, usually at no charge, then contact and vet the expert on your own. A custom search firm recruits and screens a candidate for your specific case and is paid for that work, usually through a markup on the expert's hourly rate or a placement fee. Either way, check the expert's challenge history and the Rule 702 case law in your court before you retain.
Can CaseSearch find expert witnesses?
No. CaseSearch searches court opinions, so it finds the published decisions that apply Rule 702 or your state standard to a kind of expert or method, with citations and a good-law signal. Use it next to an expert database, at 49 dollars a month or 24 billed yearly.
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Daubert Tracker pricing
When the subscription beats per-report buying.
Jury verdict research
Verdict databases and what they cost, including expert outcomes.
Westlaw pricing
The configured Westlaw plans for firms of 1 to 10 attorneys.
LexisNexis pricing
Every Lexis+ tier, term and out-of-plan rate.
LexisNexis out-of-plan charges
The per-document and per-report rates.
Lex Machina pricing
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Brief analyzer
Check a brief before you file it.
CaseSearch pricing
Our own published price, with no sales call.
CaseSearch is a legal research tool, not legal advice. Always read the full opinion and verify citations before relying on them.
Start now
Find the rulings that decide your Daubert motion
Ask how courts in your jurisdiction treat a kind of expert or methodology and read the on-point decisions, their citations and a good-law signal. One run needs no account. After that, 49 dollars a month or 24 billed yearly, cancel anytime. A research tool, not legal advice.