# The Crime Lab: How Georgia Built Convictions on Junk Science — and Who Paid for It > For two decades Georgia's crime lab was run by a man who was not a physician or forensic pathologist, and built convictions on hair and fiber methods now known to be unreliable. At least 17 states reviewed such cases. Georgia didn't — and the guilty went free while the innocent went to prison. **Published**: 2026-06-17 **Source**: https://gps.press/the-crime-lab-how-georgia-built-convictions-on-junk-science-and-who-paid-for-it/ **Author**: Leo Alexander --- When a Georgia jury convicted John Jerome White of rape in 1980, the man who had actually committed the crime was sitting in the same lineup. White spent more than two decades in prison. The real attacker walked free — uncaught, unpursued, and at liberty to do it again. That is the cost of a wrongful conviction that almost no one counts. We think of it as one man's tragedy, and it is. But every time the state convicts the wrong person, it closes the case — and stops looking for the right one. The guilty go free. And that should frighten everyone, not just the people behind the walls. White was convicted on microscopic hair comparison performed by Georgia's state crime laboratory — a forensic discipline that the scientific community has since concluded cannot reliably do what analysts once claimed it could. He is not an isolated case. For roughly two decades, the laboratory that produced that testimony, and the statewide medical examiner system attached to it, were run by a single man who was not a physician and not a board-certified forensic pathologist. The disciplines his laboratory relied on — hair comparison, fiber matching, soil analysis, firearms pattern-matching — are the same ones a landmark national review later found to rest on little validated science. And while at least seventeen states have since gone back to re-examine convictions built on the most discredited of those methods, Georgia, on the available record, has not. This is the story of that laboratory, the man who built its authority, and the question the state has never answered: how many people are still in prison — or died there — because Georgia trusted science that wasn't. ## The man who was the lab For nearly two decades, Georgia's forensic authority had a name and a face. Larry B. Howard became director of the Georgia Division of Forensic Sciences and supervisor of the state's medical examiner system in 1969, a position he held until his retirement in 1988 — the year before some of the cases at the center of this story went to trial. He was known across the state's courtrooms as "Doc" Howard. But Howard was not a medical doctor. His doctorate was an academic one — in the sciences, not in medicine — supplemented with postdoctoral coursework. He was not a physician, and he was not a board-certified forensic pathologist, the credential that medicine reserves for specialists trained to determine how a person died. None of that was hidden; under oath, Howard said so plainly. In the 1988 capital trial of Carl Isaacs in Houston County, defense attorney G. Terry Jackson asked him directly: > "Doctor Howard, are you a Pathologist?" "No, I'm not a Pathologist." "Are you a Forensic Pathologist?" "I'm not a Forensic Pathologist." "So you're not a medical doctor?" "No, I'm not." Those words come from the trial transcript as preserved by a death-row prisoner who sat through that era of Georgia justice and copied them down. They matter because, in case after case, the man telling Georgia juries how victims died held none of the medical credentials the task normally requires. Here is the part that complicates the easy version of this story, and the part that makes the real version worse: Howard's role was not illegal. Georgia's 1953 Post Mortem Examination Act made the director of the crime laboratory the state's chief medical examiner by virtue of the office, with no requirement that the person be a physician. A 1984 opinion of the Georgia Attorney General confirmed that a non-physician could lawfully hold the role. The state did not quietly tolerate an unqualified man; it had written the law so that the qualification was not required. Georgia added a physician requirement only in 1990, and a board-certified-pathologist requirement only in 1997 — both after Howard was gone. The state's own corrections are the confession. For decades, Georgia law permitted exactly what later lawmakers decided should never happen again. And Howard was not a distant administrator signing off on other people's work. According to retired GBI Director Vernon Keenan, Howard worked during an era when the crime lab assigned only him and one other investigator to handle forensic work on cases across the entire state. He flew his own plane to crime scenes and autopsies. For much of his tenure, the science the State of Georgia put in front of juries was, to a remarkable degree, one man's judgment. ## The science that wasn't The problem was never only who delivered the testimony. It was what the testimony claimed. In 2009, the National Academy of Sciences published the most comprehensive independent review of American forensic science ever conducted. Its conclusion was blunt: with the single exception of DNA analysis, no forensic method had been rigorously shown to reliably connect a piece of evidence to a specific individual or source. The disciplines built on an examiner eyeballing two samples and declaring a "match" — hair comparison, fiber comparison, bite marks, firearms and toolmark identification — drew the sharpest criticism, because they lacked validated error rates and rested heavily on subjective interpretation. ((National Academy of Sciences, Strengthening Forensic Science in the United States: A Path Forward, 2009, [https://www.ojp.gov/pdffiles1/nij/grants/228091.pdf](https://www.ojp.gov/pdffiles1/nij/grants/228091.pdf) )) Microscopic hair comparison was the clearest failure. When the FBI finally audited its own examiners' courtroom testimony, the results were staggering: the Bureau found that its analysts had given scientifically flawed or overstated testimony in the overwhelming majority of the cases reviewed — at least ninety percent of the trial transcripts examined in the first round contained errors. ((FBI press release on microscopic hair analysis review, April 2015, [https://www.fbi.gov/news/press-releases/fbi-testimony-on-microscopic-hair-analysis-contained-errors-in-at-least-90-percent-of-cases-in-ongoing-review](https://www.fbi.gov/news/press-releases/fbi-testimony-on-microscopic-hair-analysis-contained-errors-in-at-least-90-percent-of-cases-in-ongoing-review) )) Nationally, faulty hair evidence has been a factor in dozens of wrongful convictions later overturned by DNA. Fiber comparison, which built Howard's national reputation through the Atlanta child-murders prosecution of Wayne Williams, sits on firmer but still contested ground: instruments can identify what kind of fiber something is, but the leap from "this type" to "this specific source, to a statistical certainty" is exactly the overstatement the science cannot support. Soil and geology comparison — Howard earned a geology degree mid-career after a case turned on dirt from a suspect's boots — carries the same conditional reliability. Even the firearms pattern-matching Howard performed personally fell into the category the National Academy flagged. In a 1975 case, testifying as crime-lab director, he told a jury there was a "high probability" that a bullet had been fired from a particular type of gun — the kind of probabilistic overclaim the report would later warn against. The fair calibration matters here, because it is what makes the indictment credible rather than cartoonish. Some of what Howard did sat on solid scientific ground — the toxicology and chemical analysis closest to his actual training. The problem is that the same authority, the same "Doc" Howard with the same imposing credentials, lent identical weight to the sound testimony and the unsound testimony. A jury had no way to tell the difference. The credential carried the courtroom. ## The proof in human lives The abstract problem became real in the lives of specific Georgians. **Gary Nelson** spent eleven years on Georgia's death row. He was convicted in 1980 in Chatham County largely on the testimony of Roger Parian, director of the crime lab's Savannah branch, who told the jury he had examined a hair found on the victim's body, determined it came from a Black person, and narrowed its likely source to roughly 120 people in the county. In truth, Parian had never examined the hair. He had sent it to the FBI, which had reported back that it was "not suitable for significant comparison purposes." Nelson was exonerated and released in 1991, after a prosecutor who inherited the case concluded there was no material element of the original case that had not been impeached or contradicted. ((Death Penalty Information Center, Killing Justice: Government Misconduct and the Death Penalty, [https://deathpenaltyinfo.org/facts-and-research/dpic-reports/in-depth/killing-justice-government-misconduct-and-the-death-penalty](https://deathpenaltyinfo.org/facts-and-research/dpic-reports/in-depth/killing-justice-government-misconduct-and-the-death-penalty) )) ((National Registry of Exonerations, Gary Nelson, [https://exonerationregistry.org/cases/10726](https://exonerationregistry.org/cases/10726) )) **John Jerome White** — the man whose case opens this story — was convicted in 1980 in Meriwether County on state-crime-lab hair comparison and a mistaken eyewitness identification. DNA testing exonerated him in 2007, more than two decades later, and identified the actual perpetrator, a man who had stood in the very lineup where the victim picked White. ((Georgia Innocence Project, John White, [https://www.georgiainnocenceproject.org/freed-client/john-white/](https://www.georgiainnocenceproject.org/freed-client/john-white/) )) **Robert Clark** is the case that proves the public-safety point most precisely. Clark was convicted of a 1981 Atlanta rape and served twenty-four years before DNA cleared him in 2005. His conviction did not turn on a forensic "match" — the GBI testimony was limited, and the case rested on a misidentification and lost evidence — but the consequence is the one that should alarm everyone. While Clark sat in prison, the real attacker, Tony Arnold, remained free. DNA later tied Arnold to additional rapes committed in the years that followed. ((Innocence Project, Robert Clark exonerated after 24 years, [https://innocenceproject.org/news/robert-clark-exonerated-by-dna-evidence-after-24-years-in-prison/](https://innocenceproject.org/news/robert-clark-exonerated-by-dna-evidence-after-24-years-in-prison/) )) These are the cases that surfaced — the ones where DNA happened to survive, where someone kept fighting, where a court eventually listened. They are not a complete accounting. They are the visible portion of something the state has never measured. ## Other states looked. Georgia didn't. When the FBI confirmed in 2015 that its hair-comparison testimony had been systematically flawed, it did something significant: it wrote to the governors of states whose crime labs had sent examiners to FBI training, urging them to review the convictions their own analysts had helped secure. Because the FBI had trained hundreds of state and local examiners in the same flawed methods over a quarter century, the contamination had spread well beyond federal cases. States responded. By independent count, at least seventeen launched reviews of microscopic hair comparison convictions. Texas built a standing Forensic Science Commission and enacted a "junk science writ" — a law letting prisoners challenge convictions when the underlying science has changed. North Carolina audited its state lab and created an Innocence Inquiry Commission. ((National Registry of Exonerations, Microscopic Hair Comparison Analysis and Convicting the Innocent, Simon A. Cole, [https://www.law.umich.edu/special/exoneration/Documents/NREReportMHCA.pdf](https://www.law.umich.edu/special/exoneration/Documents/NREReportMHCA.pdf) )) These were not symbolic gestures. They found innocent people and freed them. Georgia appears on none of the lists of states that conducted such reviews. It has no forensic science commission. It has no equivalent of the junk-science writ. It has no innocence inquiry commission. To test whether that absence reflected a quiet review the public simply hadn't heard about, GPS asked directly. We requested any records of a microscopic-hair-comparison review, or any response to the FBI's 2015 outreach, from the offices that would hold them. The Office of the Governor responded that it has no such records. The Georgia Bureau of Investigation, the agency that operates the crime lab, acknowledged the request under the Georgia Open Records Act and cited a six-to-eight-week processing backlog; that response remains pending as of publication, and this article will be updated when it arrives. A documented absence is not the same as a documented refusal. But the body that would have coordinated a statewide response to the FBI's warning has no record that one ever happened. ## The door that just opened For most of the past forty years, even a prisoner who could prove the science had changed faced a wall: Georgia courts treated a new scientific consensus about old evidence as too late, too speculative, or not "new" in the legal sense. That changed in 2025. In *Smith v. State*, decided unanimously on October 15, 2025, the Georgia Supreme Court held that expert testimony based on evolving scientific understanding can constitute newly discovered evidence justifying a new trial — even when the new expert is reanalyzing the same physical evidence presented at the original trial. ((Smith v. State, 322 Ga. 743, 2025, [https://law.justia.com/cases/georgia/supreme-court/2025/s25a0548.html](https://law.justia.com/cases/georgia/supreme-court/2025/s25a0548.html) )) The case involved a conviction built on a shaken-baby diagnosis the science has since undercut, but the principle reaches far wider. A prisoner convicted on hair microscopy, or on cause-of-death testimony from a non-physician, now has a recognized legal path to argue that the modern scientific consensus is itself the new evidence. The remedy is real. Its reach is another matter. Many of the people who might invoke it are dead, paroled, or have already exhausted their appeals. A roadmap is not the same as a destination. But for the first time, the road exists — which makes the state's failure to look all the more consequential. The mechanism to correct these convictions is now on the books. What is missing is anyone with the authority to go looking for the people who need it. ## Why this is everyone's problem It is tempting to file all of this under someone else's misfortune — the wrongly convicted, a population easy to look past. That instinct misreads the stakes. A wrongful conviction is a double failure. An innocent person is caged, and a guilty one is freed. When the state declared John Jerome White a rapist, it stopped searching for the man in the lineup who actually was one. When it sent Robert Clark to prison, the real attacker stayed in the community and offended again. Every conviction built on bad science is a case the state closed while the danger remained open. This is the argument for a working system of correction — not as mercy for prisoners, but as protection for the public. A justice system that cannot revisit its own errors does not just trap the innocent. It shields the guilty, and it leaves the rest of us to absorb the consequences. Georgia built decades of convictions on methods it now knows were unreliable. The least it can do is count the cost. --- ## Call to Action: What You Can Do Awareness without action changes nothing. Here's how you can help push for accountability and real reform: **Join the GPS Advocacy Network** — Sign up at [https://gps.press/become-an-advocate/](https://gps.press/become-an-advocate/) and we'll advocate on your behalf every week. GPS identifies your state legislators, crafts personalized letters on the most pressing prison issues, and sends them directly to the representatives who represent you. You receive a copy of every letter. It takes two minutes to sign up — we handle the rest. **Tell My Story** — Are you or a loved one affected by Georgia's prison system? GPS publishes first-person accounts from incarcerated people and their families. Submit your story at [https://gps.press/category/tellmystory/](https://gps.press/category/tellmystory/) and help the world understand what's really happening behind the walls. **Contact Your Representatives** — Your state legislators control GDC's budget, oversight, and the laws that created these failures. Find your Georgia legislators at [https://gps.press/find-your-legislator/](https://gps.press/find-your-legislator/) or call Governor Kemp at (404) 656-1776 or the GDC Commissioner at (478) 992-5246. **Demand Media Coverage** — Contact newsrooms at the AJC, local TV stations, and national criminal justice outlets. More coverage means more pressure. **Amplify on Social Media** — Share this article and tag @GovKemp, @GDC_Georgia, and your local representatives. Use #GAPrisons, #PrisonReform, #GeorgiaPrisonerSpeak. **File Public Records Requests** — Georgia's Open Records Act gives every citizen the right to request incident reports, death records, staffing data, medical logs, and financial documents at [https://georgiadcor.govqa.us/WEBAPP/_rs/SupportHome.aspx.](https://georgiadcor.govqa.us/WEBAPP/_rs/SupportHome.aspx.) **Attend Public Meetings** — The Georgia Board of Corrections and legislative committees hold public meetings. Your presence is noticed. **Contact the Department of Justice** — File civil rights complaints at [https://civilrights.justice.gov.](https://civilrights.justice.gov.) Federal oversight has forced abusive systems to change before. **Support Organizations Doing This Work** — Donate to or volunteer with Georgia-based prison reform groups fighting for change on the ground. **Vote** — Research candidates' positions on criminal justice. Primary elections often determine outcomes in Georgia. **Contact GPS** — If you have information about conditions inside Georgia's prisons, reach us securely at GPS.press. --- ## Part of Something Bigger This article is part of the [GPS Reform Agenda](/our-vision/) — two active campaigns to transform Georgia's criminal justice system. **[Vision 2027](/vision2027/)** THIS SERIES Three model bills for the 2027 Georgia legislature. The legislature doesn't need new laws — it needs to [enforce two dormant statutes](/the-sleeping-giants/) it already passed. **[End the Warehouse](/end-the-warehouse/)** Transform Georgia's prisons from punishment to rehabilitation. Two tracks: litigation to reduce overcrowding + evidence-based programs that work. [Read the full GPS Reform Agenda →](/our-vision/) --- ## Further Reading **[Georgia Supreme Court Opens Door for Prisoners to Challenge Convictions Based on Outdated Science](https://gps.press/georgia-supreme-court-opens-door-for-prisoners-to-challenge-convictions-based-on-outdated-science/)** *How the unanimous Smith v. State decision created a legal path for prisoners convicted on discredited forensic methods to seek new trials.* **[The Sleeping Giants](https://gps.press/the-sleeping-giants/)** *The dormant Georgia statutes that already authorize the reforms the state refuses to enforce — the foundation of the No Way Out series.* **[Turning the Light of Truth Upon Them](https://gps.press/light-of-truth/)** *Why documentation, not outrage, is the instrument that ends injustice — the investigative philosophy behind this work.* **[The Receipts Were Always the Point](https://gps.press/the-receipts-were-always-the-point/)** *How building an irrefutable evidentiary record forces accountability where appeals to conscience fail.* --- ## GPS Intelligence System The GPS Intelligence System maintains living research profiles that aggregate data, news, settlements, and analysis on Georgia's prisons and the issues defining them. The profiles below provide deeper context for the issues raised in this article: **[Legal Access](https://gps.press/intelligence/issue/legal-access/)** *Tracks the barriers Georgia prisoners face in challenging their convictions — the post-conviction machinery on which any forensic-science remedy depends.* **[Oversight and Investigations](https://gps.press/intelligence/issue/oversight-investigations/)** *Documents the absence of independent review in Georgia's criminal justice system, the structural gap at the heart of this investigation.* --- ## Explore the Data GPS makes GDC statistics accessible to the public through several resources: - **[GPS Statistics Portal](https://gps.press/gdc-statistics/)** — Interactive dashboards translating complex GDC reports into accessible formats, updated within days of official releases. - **[GPS Lighthouse AI](https://gps.press/ask-ai/)** — Ask questions about Georgia's prison system and get answers drawn from GPS's investigative archive and data analysis. - **[GPS llms.txt](https://gps.press/llms.txt)** — A single machine-readable index of every GPS data resource, published using the open llms.txt standard. Point any AI tool (ChatGPT, Claude, Gemini, Perplexity) at this URL and the model can navigate to facility profiles, intelligence briefs, mortality records, statistics, and the full investigative archive — no other configuration needed. It is the fastest way to ground an AI conversation in verified GPS data. For a walkthrough of how to put these resources to work with AI, see **[How to Use GPS Data with AI Tools](https://gps.press/how-to-use-gps-data-with-ai-tools/)** — a step-by-step guide for researchers, advocates, families, and journalists analyzing Georgia prison conditions, statistics, and policy with tools like ChatGPT, Claude, and Gemini. Contact GPS at media@gps.press for access to underlying datasets used in this analysis. --- ## About Georgia Prisoners' Speak (GPS) Georgia Prisoners' Speak (GPS) is a nonprofit investigative newsroom built in partnership with incarcerated reporters, families, advocates, and data analysts. Operating independently from the Georgia Department of Corrections, GPS documents the truth the state refuses to acknowledge: extreme violence, fatal medical neglect, gang-controlled dorms, collapsed staffing, fraudulent reporting practices, and unconstitutional conditions across Georgia's prisons. Through confidential reporting channels, secure communication, evidence verification, public-records requests, legislative research, and professional investigative standards, GPS provides the transparency the system lacks. Our mission is to expose abuses, protect incarcerated people, support families, and push Georgia toward meaningful reform based on human rights, evidence, and public accountability. Every article is part of a larger fight — to end the silence, reveal the truth, and demand justice. ![GPS Footer](https://gps.press/wp-content/uploads/2025/03/GPS-Ad2.jpg) ---