How LegaFi gathers evidence for mass tort cases

February 27, 2025
Legal team researching case.
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Mass tort cases involve multiple plaintiffs who have suffered harm from a common defendant, such as a pharmaceutical company, manufacturer or other corporate entity. To successfully pursue compensation, plaintiffs must present strong evidence of liability and damages. Without solid documentation, claims may be weakened, reducing the chances of a favorable outcome. This is where LegaFi steps in. We help guide plaintiffs to ensure they have the necessary documentation to build a case.

Types of evidence

For mass tort cases, plaintiffs can present a diverse range of evidence to demonstrate the extent of harm and establish the defendant’s liability. The following types of evidence are admissible in these cases:

  • Medical records: Detailed medical documentation is essential to link injuries or illnesses to the defendant’s product or actions. These records may include hospital visits, prescriptions, test results and physician notes.
  • Expert testimony: Experts, such as medical professionals, scientists and industry specialists, provide insights that can strengthen a case. Their testimony can help explain complex issues, such as how a defective product caused harm.
  • Product documentation: Internal company records, safety reports, emails and product testing data can provide evidence of negligence or misconduct on the part of the defendant.
  • Witness statements: Testimony from affected individuals and industry professionals can further support claims.
  • Regulatory reports: Findings from agencies like the FDA, EPA or OSHA may highlight prior warnings, recalls or regulatory violations tied to the case.

Best practices 

Collecting and maintaining evidence is critical to a successful mass tort claim. Here are a few key best practices:

  • Organize medical records: Keep all medical documents in chronological order and ensure they are complete.
  • Preserve communications: Save emails, letters or messages related to the injury or defective product.
  • Document symptoms and experiences: Maintain a personal journal detailing health impacts, treatments and emotional distress.
  • Avoid altering or discarding documents: Even seemingly minor details can play a crucial role in establishing liability.
  • Engage legal experts early: Experienced attorneys can guide plaintiffs on the best ways to secure relevant evidence.

Legal support 

LegaFi can help simplify and strengthen the evidence-collection process for mass tort plaintiffs. Here’s how:

  • Case evaluation and guidance: Clients receive professional assistance in determining what evidence is necessary and how to collect it effectively.
  • Medical record organization: LegaFi can help plaintiffs organize and manage medical records.
  • Finding an expert: LegaFi can connect plaintiffs with top industry experts who can provide credible testimony.
  • Document preservation and analysis: LegaFi works to ensure crucial documents are securely stored and analyzed for their legal significance.

Strong evidence is the backbone of any successful mass tort case. LegaFi’s expertise in gathering, preserving and analyzing evidence gives plaintiffs a powerful advantage. If you or a loved one has been affected and need assistance building your case, reach out to LegaFi today. With the right evidence, you can take the first step in an action to hold negligent parties accountable.


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