Expert-on-Expert · Peer Review at Scale

Find the exploit
before they build a defense around it.

LitigationPrep applies forensic psychology peer-review standards to the opposing expert's methodology -- the same analysis a credentialed forensic psychologist would perform -- and maps every vulnerability: Daubert exposure, validity gaps, scope overreach, and literature inconsistencies. Walk into deposition knowing exactly where their position collapses.

Built by a forensic psychologist who has spent 15 years on the witness stand.

Daubert Challenge Vectors·Methodology Attack Analysis·Credential Vulnerability Mapping·Cross-Examination Question Generation·Framing Strategy for Jury·Rebuttal Expert Briefing·Daubert Challenge Vectors·Methodology Attack Analysis·Credential Vulnerability Mapping·Cross-Examination Question Generation·Framing Strategy for Jury·Rebuttal Expert Briefing·
The cost of walking in blind

Every case has an exploitable weakness.
The question is who finds it first.

Blind spots in methodology

The expert administered an instrument without addressing validity indicators, secondary gain context, or forensic interpretive cautions. You didn't catch it. Opposing counsel built three questions around it.

Untested arguments

Your cross sounded strong in your head. On the stand, the expert had a prepared answer for every question because the line of attack was predictable.

The weakness they found first

There was a scope overreach in the report. You missed it. They didn't. It became the centerpiece of redirect.

Credibility you can't recover

One poorly constructed question let the expert reframe the narrative. The jury heard the reframe, not your argument. That moment decided the case.

LitigationPrep is where you find the exploit before opposing counsel builds a strategy around it.

How the trap forms

Three questions. One concession.
The jury remembers the third.

Your cross-examination

"Doctor, the MMPI-3 normative sample is community-based, correct?"

Foundation. Establishes a fact the expert cannot deny.

Expert responds

"That is correct. The MMPI-3 normative sample was collected from the general population."

Commitment locked. The expert has confirmed the premise.

Follow-up

"And you did not address the validity indicators or secondary gain context in your interpretation, did you?"

Escalation. Turns the commitment into a methodology gap.

Expert responds

"I relied on the standard normative sample, which is the validated reference for the instrument."

Deflection attempt. But the gap is now on the record.

The close

"So you are asking this jury to accept a personality assessment based on norms that do not account for the fact that this individual is in active litigation and has a financial incentive to present in a particular way?"

The concession the jury hears. The expert's methodology gap becomes the narrative.

LitigationPrep builds this sequence for you. The EVR identifies the methodology gap. The Model Question Outline sequences the questions. The simulator lets you practice the execution.

Find your exploit →
Expert Vulnerability Report: EVR-2024-0091
Expert identified
Dr. J. Harmon, PhD, Forensic Psychology, TX
Proceeding type
Personal Injury (Civil), Federal District Court
Attack vectors identified
01

Validity and secondary gain not addressed. MMPI-3 normative sample is community-based. Expert did not account for forensic interpretive cautions or secondary gain indicators in a litigation context.

02

No validity testing for malingering. Report lacks SIMS, M-FAST, or embedded validity indicators.

03

"Permanent impairment" exceeds scope. Prognosis unsupported by peer-reviewed literature at this injury severity level.

Expert Vulnerability Report

Every opinion has a pressure point.

Most attorneys walk into expert cross knowing the general territory. LitigationPrep gives you the specific fracture lines: where the methodology breaks down, where the conclusions overreach the data, and what questions force the witness to say it in front of the jury.

Built on deep knowledge of forensic psychology, neuropsychology, and psychiatric expert testimony: the categories attorneys most frequently face in civil and criminal litigation.

System intelligence

Case-law grounded. Every report cross-references relevant federal case law via CourtListener: Daubert rulings, admissibility precedents, instrument-specific challenges.

Scenario-aligned. Attack vectors are calibrated to your proceeding type: personal injury, competency, custody, disability, criminal. Not generic.

Phase-aware simulation. The expert adapts as the session progresses. Early answers lock in positions. By late session the witness is defending prior testimony, not just answering questions. Sessions are saved and scored across six dimensions.

Generate EVRSee a live example
One platform. Both sides.

Their expert. Your expert.

Opposing expert

Find the weakness. Exploit it.

Upload their report or enter methodology manually

Daubert vulnerability mapping with severity scoring

Sequenced cross-examination questions for each weakness

Concession targets: the exact admission you need

Jury framing: how to explain it in plain language

Practice the cross in the simulator before court

Your retained expert

Know what is coming. Be ready.

Upload your own expert's report for defensive analysis

Anticipate every line of cross opposing counsel will pursue

Direct examination questions that address each flag on your terms

Recommended responses: what your expert practices saying

Supporting literature your expert can cite under oath

Practice defending the testimony in the simulator

Same extraction pipeline. Same de-identification. Same audit trail. The toggle on the EVR form changes the strategic lens: offense or defense. Both generated in seconds.

Try both modes free
Not hypothetical sparring

Grounded in real case structure.

When you upload a report, the document is de-identified through a three-pass pipeline before extraction. Evaluee names are stripped. Expert names are preserved. The methodology, tests, and opinions that reach the EVR are real forensic content, not synthetic scenarios. That is what makes the analysis actionable and the simulation realistic.

Speed matters in litigation

EVR in seconds. Simulation in minutes.

Upload the report. Get the vulnerability analysis before your next meeting. Run the cross in the simulator over lunch. Adjust your question sequence and run it again. This is designed for how attorneys actually work: under time pressure, iterating fast, refining strategy between depositions.

Attorney work product

LitigationPrep is designed for use at attorney direction in anticipation of litigation. When used in that context, outputs may support work-product protection. Privilege determinations are fact-specific and jurisdiction-dependent. Apply your own professional judgment. The privilege page has details.

Cross-Examination Simulator

Litigation sparring
before the real fight.

Every elite athlete spars before the fight. Every trial attorney should cross the expert before the courtroom. LitigationPrep puts a resistant, evasive, or cooperative expert on the stand and lets you run your cross until it holds up.

The expert adapts as the session progresses. Early answers lock in positions. By exchange eight, the witness is defending prior testimony, not just answering questions. The simulator flags openings, volunteers, and contradictions as they happen. End the session and receive a six-dimension cross-examination score with your strongest line, your biggest unexploited gap, and a single behavioral priority for next time.

Phase-aware expert
Witness behavior evolves and locks in as the session progresses
Real-time coaching
Objections, volunteering flags, contradiction alerts as they happen
Six-dimension scoring
Methodology attack, sequencing, impeachment, jury framing, and more
Start a simulation
Simulator: Personal Injury Cross · Resistant
A
In my professional opinion, the plaintiff suffers from permanent partial disability attributable to the incident, with a 40% functional impairment rating.
Q
Normative sample mismatch
Doctor, the MMPI-3 you administered uses a community-based normative sample. This plaintiff was evaluated in a personal injury context with significant secondary gain potential. Did you account for the validity indicators and response style patterns that the instrument flags specifically in forensic and litigation contexts?
A
I used the standard norms provided in the test manual.
Q
Impeachment sequence
So your interpretation did not address the base-rate context for forensic evaluations, the secondary gain indicators the instrument flags, or the forensic interpretive cautions the test authors specifically document for litigation settings?
ResultWitness concedes failure to apply forensic norms. Impairment rating now methodologically unsupported.
What LitigationPrep does

Three tools. Both sides of the courtroom.

Flagship
01

Expert Vulnerability Report

Analyze the opposing expert's methodology for Daubert exposure, credential weaknesses, and cross-examination sequences. Every report includes a rebuttal brief outline for your own expert. Generated in seconds.

New
02
🛡

Retained Expert Defense

Upload your own expert's report. Anticipate every line of cross they will face, prepare direct examination that addresses each vulnerability on your terms, and give your expert the exact responses to practice before deposition.

03
🎯

Cross-Examination Simulator

Sparring before the courtroom. Claude plays the expert across three demeanor modes. The witness adapts phase by phase: foundation, pressure, late-session consistency. Real-time coaching flags openings and contradictions.

Where expert positions collapse

Six categories. Every one a line of attack.

01

Daubert / Frye Admissibility

Is the methodology testable, peer-reviewed, and generally accepted? We map every prong of the gatekeeping standard against the expert's actual methods.

02

Validity Testing Failures

Did the expert use performance validity tests and symptom validity tests? Failure to rule out malingering is one of the most damaging methodological gaps in civil and criminal cases.

03

Scope Overreach

Prognosis stated beyond what the data supports. Causation inferred where only correlation exists. Certainty language used for probabilistic findings.

04

Normative Sample Mismatch

Was the tool validated on a population that resembles this claimant? Litigation context, cultural factors, age, and education all affect standardized testing validity.

05

Credential and Role Confusion

Is the expert opining within their actual area of specialization? What does their publication and practice record actually show?

06

Literature Inconsistency

Does the expert's opinion align with published science? We surface peer-reviewed findings that contradict the expert's conclusions.

What the EVR surfaces

Every vulnerability.
Ranked before you walk in.

Paste the opposing expert's credentials and methodology. The EVR maps every attack vector, scores vulnerability by category, and generates a sequenced cross-examination strategy in seconds. Or switch to retained expert mode: the same analysis prepares your own expert for the cross they will face, with direct examination questions and recommended responses.

Generate free EVR →See a sample report →
EVR: Attack Vector ExposureHIGH VULNERABILITY
Expert
Dr. P. Chen, PhD
Proceeding
Personal Injury / TBI
Daubert admissibility
88
Validity testing gap
91
Normative mismatch
74
Scope overreach
63
Literature inconsistency
45
Credential confusion
31
Critical
Significant
Moderate
Pricing

One matter can justify the entire year.

The Founding Pro rate is deliberately below what this platform will cost at scale. It exists because the attorneys who build their practice around expert-witness strategy now should pay less than those who arrive later. It locks in permanently.

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  • 1 Expert Vulnerability Report
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  • Unlimited EVR reports
  • Unlimited simulator sessions
  • Clean PDF export
  • Rebuttal expert briefs
  • All six attack vector categories
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$299 / month

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The attorney's edge

If your case hasn't been stress-tested like this,
opposing counsel will do it for you.

Every expert walks into the stand having rehearsed their testimony. LitigationPrep is how you find where it breaks before they do.

Expert Vulnerability Reports. Cross-examination practice. Rebuttal briefs. One platform.

Generate your first EVR, free