Second opinions in forensic pathology: when, why and how.
A second opinion in forensic pathology is an independent review of the medical evidence in a death or injury by a qualified forensic pathologist. It may confirm the original findings, refine them, or identify what was missed. Prosecutors, defense counsel, civil attorneys, agencies and families all request them.
Medically reviewed by Evan W. Matshes, MD, FRCPC, D-ABP, Medical Director and Chief Forensic Pathologist · Updated
- A second opinion can be a records review, a second autopsy, or a re-examination of retained tissue (a Deep Dive).
- Most second opinions start with the existing record: report, photographs, slides, toxicology and investigative material.
- Retained brain, bone and histology blocks often hold answers the first examination did not pursue.
- Confirmation is a valuable result. A second opinion is not an accusation.
- Independence matters: the reviewing pathologist should report what the evidence shows, whoever is asking.
When is a second opinion warranted?
- The first examination appears incomplete: structures not examined, tissue not sampled, tests not performed.
- The case is complex: a child’s death, an allegation of abuse, a death in custody or after restraint, strangulation, or a death following medical care.
- Science has moved on since the original examination.
- Experts disagree, or the conclusion does not fit the rest of the evidence.
- A conviction or major decision rests on the medical evidence and certainty matters.
What forms can a second opinion take?
Records review and verbal opinion. The reviewing pathologist examines the existing materials and explains the findings. Expert report. A written opinion with exhibits, prepared for litigation. Second autopsy. A complete re-examination of the decedent, where still possible, including after exhumation when legally authorized. The Deep Dive. Specialist re-examination of the retained brain, bones or the whole case, with new histology and testing. See the Deep Dive.
What materials should we gather?
- The autopsy report and any amendments, and the death certificate.
- All autopsy and scene photographs, in original resolution.
- Histology slides, or the paraffin blocks so new slides can be cut.
- Toxicology and other laboratory reports.
- Investigative reports, and medical and EMS records.
- Imaging, including any postmortem CT or skeletal survey.
- An inventory of retained organs and tissue, and where they are held.
Missing material can often be obtained later. Send what you have and we will tell you what else the question needs.
Who can request one?
Prosecutors through NAAG’s Autopsy Integrity Program, offered at no cost to prosecutorial agencies. Defense counsel, appointed or retained, and civil attorneys through NAAG’s consultation services. The Department of Defense and military justice counsel. Families, directly, through the next-of-kin program. Submit a case to begin.
What makes a second opinion credible?
The reviewing physician should be board certified in forensic pathology, and in the relevant subspecialty where the question demands it. They should see the original evidence, not only summaries. Their conclusions should be documented so that another qualified expert can test every one. And they should be willing to say when the original findings were right. NAAG reports what the evidence shows, whichever side has asked.
Frequently asked questions.
Does a second opinion mean the first pathologist was wrong?
No. Many second opinions confirm the original findings, and that confirmation is valuable in itself.
Can a second opinion be done without the body?
Yes. Most begin with the records, photographs and slides. Retained organs and tissue can often be re-examined years later.
How long does a second opinion take?
It depends on the materials and the question. Records reviews can often be expedited; dependency matters are handled on a rush basis. We confirm the timeline before work begins.
Will the reviewing pathologist testify?
Yes. NAAG physicians testify to their own work, in person or remotely where the court permits.
Talk to a forensic pathologist
Every case is different. Tell us about yours and we will tell you honestly what an examination or review can answer.
Start with a conversation.
Tell us who you are and, in general terms, what you need. The right member of our team will respond.
San Diego, CA 92121
Please don't email case records or images. The case request form collects what we need to open your matter; we'll arrange secure transfer of records after that.