Louisiana 2026 Regular Session

Louisiana House Bill HB437

Introduced
2/25/26  
Refer
2/25/26  
Refer
3/9/26  
Report Pass
4/27/26  
Engrossed
5/6/26  

Caption

EVIDENCE: Provides relative to expert witness fees

Summary

HB 437 revises Louisiana evidence and civil procedure law governing expert witnesses. The bill bars, in civil cases, a witness with a “pecuniary interest” in the outcome from being qualified as an expert, while expressly excluding criminal court, traffic court, and juvenile proceedings from that restriction. It also defines “pecuniary interest” to include compensation tied to a settlement or damages award, or other financial benefits connected to the testimony, while carving out certain relationships such as past or present employment, small ownership interests, and services provided by a treating physician. The bill further expands expert disclosure requirements in Code of Civil Procedure Article 1425(B). When expert reports are required, parties must disclose not only the expert’s opinions, basis, qualifications, publications, compensation, and prior testimony, but also any past cases in which the witness had a pecuniary interest, including the case name and the nature and value of the compensation. In practical terms, the measure is aimed at increasing transparency about expert witnesses’ financial ties to litigation outcomes and giving opposing parties and courts more information to assess potential bias.

Impact

HB 437 amends Code of Evidence Article 702 and Code of Civil Procedure Article 1425(B), changing the standards for qualifying expert witnesses and the contents of expert reports in Louisiana civil litigation. It would make certain financially interested witnesses ineligible as experts in civil cases and require broader disclosure of prior litigation-related compensation and interests. The bill affects litigants, attorneys, expert witnesses, and courts by adding disclosure obligations and potentially limiting who may testify as an expert.

Sentiment

The available voting history suggests the bill was generally well received in the House, passing with strong bipartisan support by wide margins. No committee transcript excerpts were provided, but the amendments indicate lawmakers refined the bill to narrow its reach and clarify exceptions before final passage. Overall, the sentiment appears favorable toward improving expert-witness transparency and reducing conflicts of interest, while preserving existing practice in criminal, traffic, and juvenile matters.

Contention

The main point of contention appears to be the scope of the new disqualification rule and how broadly “pecuniary interest” should be defined. The House amendments show concern about overbreadth, leading to exceptions for criminal, traffic, and juvenile proceedings and exclusions for certain ordinary relationships such as employment, minimal ownership, and treating-physician services. The disclosure of prior cases involving financial interest may also be sensitive for expert witnesses and litigants who rely on specialized professionals with litigation-related compensation histories.

Companion Bills

No companion bills found.

Previously Filed As

LA HB479

Provides relative to witness or victim notification (EN +$3,795,206 GF EX See Note)

LA HB449

Provides relative to fees reasonably expected to be earned by an attorney

LA HB423

Provides relative to healthcare providers displaying evidence of proper licensure in advertising (EN NO IMPACT See Note)

LA HB450

Provides relative to evidentiary presumptions in personal injury claims

LA SB108

Provides for recoverable medical expenses, limitation upon jury trials and admissibility of evidence in civil actions. (8/1/25) (OR INCREASE LF EX See Note)

LA HB371

Provides relative to the free exercise of religion

LA HB178

Provides for the continuous revision of the Code of Civil Procedure

LA HB439

Provides relative to a limit on attorney fees

LA SB152

Provides relative to sentencing of defendants who are victims of domestic abuse, sexual assault, or human trafficking. (8/1/25)

LA HB677

Provides relative to unfair or deceptive acts or practices relative to attorney advertising

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