Do I need an expert witness to prove a product defect in Georgia?

· 3 min read

An expert witness is not required in every Georgia product case, but in most of them expert testimony is practically necessary. Whether one is needed depends on how technical the alleged defect is and whether a lay jury could understand the failure without specialized help.

When expert testimony becomes practically necessary

Many product defects involve engineering, materials science, or other technical subjects that lie outside ordinary experience. When the question is whether a design was unreasonably dangerous, whether a manufacturing flaw caused a failure, or whether a safer alternative was feasible, juries usually cannot answer reliably without qualified explanation. In those cases, expert testimony bridges the gap between complex evidence and a jury’s understanding, and a case may not survive without it.

Georgia also imposes standards on the experts who do testify. Under O.C.G.A. § 24-7-702, expert opinions must rest on sufficient facts or data and reliable principles and methods, reliably applied. This framework lets courts screen out unreliable opinions before they reach a jury, so an expert’s qualifications and methodology matter, not just the presence of an expert.

Situations where an expert may not be essential

There are cases simple enough that an expert is not strictly required. If the defect and its cause are within the common knowledge of ordinary people, a jury may be able to evaluate them from everyday experience. Some illustrative points:

  • An obvious flaw a layperson can readily perceive may not demand technical explanation.
  • A clearly missing or plainly inadequate warning sometimes can be assessed without an engineer.
  • Circumstantial evidence of a defect, where a failure plainly would not occur without one, may carry weight on its own.

Even then, the line between common knowledge and technical complexity is often blurry, and defendants frequently raise the lack of expert support to challenge causation. Because the consequences of guessing wrong are high, product claims tend to rely on experts as a practical matter even when no rule absolutely compels it.

The bottom line

Georgia does not impose a blanket rule that every product defect claim needs an expert, but the technical nature of most defects makes expert testimony practically essential, and any expert must meet the reliability standards of O.C.G.A. § 24-7-702. Only in cases simple enough for common understanding might a claim proceed without one. Whether expert proof is needed turns on how complex the defect and its cause are.

This article is for general educational and informational purposes only and is not legal advice. It does not create an attorney-client relationship, and Georgia law may change. For advice about a specific situation, consult a licensed Georgia personal injury attorney.

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