The issues
Official misconduct
Prosecutorial and police misconduct, including suppressed evidence.
The data
61%
of Full National Registry of Exonerations database — National Registry of Exonerations
- Population
- Every exoneration in the Registry, all crime types
- Time period
- Cumulative since 1989, current registry-wide figure (3,861 exonerations)
- Cases analyzed
- 3,861 exonerations
What the number means
Official misconduct — police, prosecutorial, or both, including withheld evidence — is the single most common contributing factor tracked in the entire Registry, present in roughly three out of every five documented exonerations. The Innocence Project doesn't publish a comparable headline figure for this category on its exonerations-data page, so this is presented as a single, well-documented figure rather than as a comparison between two sources.
This figure covers every documented form of official misconduct the Registry tracks, from a single undisclosed police report to deliberate fabrication of evidence — it does not distinguish degrees of culpability, and its prevalence is especially concentrated in homicide cases. Wrongful-conviction statistics vary depending on the population studied, the time period examined, and how researchers define and classify contributing factors. Percentages shown here are attributed to their original sources and should not be interpreted as representing all criminal cases, or all wrongful convictions.
What is it?
Prosecutors and police are constitutionally required to turn over evidence that could help a defendant — a rule known as Brady disclosure, after the 1963 Supreme Court case Brady v. Maryland — and are required not to coach witnesses, conceal cooperation deals, or knowingly build a case around evidence they have reason to doubt. "Official misconduct," as the National Registry of Exonerations defines it, is deliberately broad: it covers police, prosecutors, or other government officials significantly abusing their authority or the judicial process in a way that contributed to a conviction, and it explicitly includes withheld exculpatory evidence as one of its subcategories. When any of that happens, the resulting conviction rests on a version of events the jury — and the defense — was never allowed to fully see. Xonorate tags what are sometimes discussed separately as prosecutorial misconduct, police misconduct, and suppressed evidence all under this one category, matching how the Registry itself codes it, because the harm to the defendant is the same regardless of which official was responsible.
How does it happen?
- 01
Evidence is gathered during the investigation
Investigators collect statements, physical evidence, and leads — including, in many cases, information that points away from the person who is eventually charged.
- 02
Some of that evidence undermines the emerging theory
An alternate suspect, an inconsistent witness statement, an unfavorable forensic result, or an informant's undisclosed deal doesn't fit the story investigators or prosecutors have already begun building.
- 03
A decision is made not to disclose it
Rather than turning that material over to the defense, as constitutionally required, it's left out of what's shared — sometimes through active concealment, sometimes through a disorganized file where it's simply never flagged.
- 04
The trial proceeds without it
The defense builds its case, and the jury reaches its verdict, without access to information that could have changed how the evidence was weighed.
- 05
A conviction is obtained on an incomplete record
The jury convicts based on the version of the case it was shown — a version that, unknown to it, was missing material the defendant had a right to see.
- 06
The withheld material eventually surfaces
Years or decades later, a records request, a whistleblower, a retiring official's files, or a post-conviction reinvestigation brings the missing material to light.
- 07
Undoing the conviction requires extraordinary litigation
Because the original trial record looked complete at the time, unwinding a conviction built partly on withheld evidence typically requires post-conviction counsel to prove both that the evidence existed and that it would have mattered — a high bar, even once the material is found.
Why can it matter?
Official misconduct can enter a case at almost any stage — during the investigation (evidence collection or witness handling), at charging (a decision to proceed despite known weaknesses), during plea negotiations (undisclosed information that would affect a defendant's decision to plead), or at trial itself (testimony or argument the prosecution knows or should know is misleading). Wherever it happens, its effect compounds: a defense attorney can't investigate a lead they don't know exists, can't cross-examine a witness about a deal they were never told about, and can't argue reasonable doubt using evidence that was never disclosed. Because the concealment is often not discovered until well after conviction — sometimes only when an official's later case, unrelated litigation, or a journalist's records request surfaces it — official misconduct is disproportionately associated with the longest-running wrongful convictions in the Registry's data, including several of the cases the Registry has documented from the 1970s and 1980s.
Important distinction
Official misconduct covers a wide spectrum, from a single undisclosed report in an otherwise good-faith investigation to a knowing, deliberate frame-up — the Registry codes both the same way, but the individual culpability involved is not identical.
Important distinction
A conviction being reversed for a disclosure violation does not always mean prosecutors acted in bad faith. Some violations stem from disorganized files or an oversight rather than intentional concealment — though the harm to the defendant is the same either way, which is exactly why the disclosure rule doesn't turn on intent.
Illustrative scenario
Fictional example for educational purposes
This is not a real Xonorate case. It illustrates how this issue can develop in a criminal case, generally.
The incident
The initial investigation
Where the problem begins
How the investigation develops
How it snowballs
A vague description and a prior verbal dispute make one person the focus
An alibi with a supporting receipt emerges but isn't conclusive on its own
Camera footage surfaces that would clarify the timeline in the defendant's favor
The footage and a note flagging the timing concern are never forwarded
The defense argues the alibi without the evidence that would make it compelling
The incomplete record supports a conviction the full record likely wouldn't have
The detective's private note — "worth checking further" — shows the doubt existed. What turned that doubt into a wrongful conviction wasn't a single dramatic act of concealment; it was a decision, whether through caseload pressure, overconfidence in the existing theory, or a belief the footage was inconclusive anyway, not to put that doubt into the shared file where the prosecutor and defense would have to reckon with it. Tunnel vision doesn't require intent to convict an innocent person — it just requires treating disconfirming information as not worth the paperwork.
The courtroom
The prosecutor argued the diner receipt didn't rule Jamal out, since the timing was "close enough" to allow for the stabbing beforehand.
What the jury hears
“"The defense wants you to believe the receipt clears him, but the timing works either way — he could have been at the bar and still made it to the diner."”
What the underlying record may show
“Gas-station footage, never disclosed, showed a man matching the general description at a location and time that — combined with the diner receipt — made it extremely difficult to reconcile with Jamal having been at the bar at the time of the stabbing at all.”
The conviction
Years later
The breakdown
- What happened
- Camera footage and an investigator's own documented doubt about the timeline were never disclosed to the defense or included in the shared case file.
- Why it mattered
- It deprived the defense of the evidence needed to make its strongest, and likely decisive, argument — that the timeline made Jamal's guilt implausible.
- What should have been examined
- Whether the gas-station footage was consistent or inconsistent with the defendant's alibi, and why a documented internal doubt about the timing was never shared.
- What safeguard could have helped
- A department policy requiring every investigative note and piece of collected evidence — not just what an individual detective judges relevant — to be logged in the shared, disclosable case file; and an independent disclosure-compliance review before trial in cases resting on eyewitness identification alone.
The bigger lesson
The Brady disclosure rule exists precisely because a defendant can't argue with evidence they don't know exists, and a jury can't weigh doubt it's never shown. Official misconduct, in cases like this, doesn't require a conspiracy — it can be as simple as one person's private note never making it into a shared file, and a system with no independent check to catch that gap before trial.
See it in documented cases
These documented cases are presented as real-world examples of how this issue can appear in an actual case. They are not used to calculate the prevalence statistics above.
Ricky Jackson
OhioExoneratedPolice fed details to a 12-year-old boy who had not actually witnessed the crime, intimidated him when he tried to recant, and suppressed both that attempted recantation and an undisclosed cash payment made to him — a case the National Registry of Exonerations documents in detail. Jackson served 39 years before his conviction was vacated.
Read the full case →Ronnie Long
North CarolinaExoneratedJust after 9:30 p.m. on April 25, 1976, a man broke into a house on South Union Street in Concord, North Carolina, and raped Sarah Bost, a 54-year-old white widow who was home alone. The attacker covered her face and told her not to look at him. Bost did not identify anyone from a photo array at the hospital, and her first description was of a Black man in a dark leather jacket with no mention of facial hair. Later she described him as "light-skinned" or "yellow." Ronnie Long, a 20-year-old Black cement mason who lived with his parents, was arrested on a trespassing charge on April 29. Instead of showing Bost his photo, police brought her to his May 10 court date, where she sat disguised in a red wig and sunglasses and told officers he was her attacker before he said a word. Police then arrested him for rape and burglary. An all-white jury, seated from a 49-person pool that included only two Black residents after law enforcement screened the jury list, convicted him on October 1, 1976. He was sentenced to life. No physical evidence tied him to the crime, and several alibi witnesses had placed him elsewhere that night. Thirty years later, records finally released under a 2005 court order showed that the State Bureau of Investigation had tested 14 pieces of evidence in 1976 and that none of it implicated Long. The lead detective had told the jury the opposite, and a later judge wrote that he "lied. Repeatedly." Forty-three fingerprints lifted from the scene, never disclosed, excluded Long. In August 2020 the full U.S. Court of Appeals for the Fourth Circuit, by a 9-6 vote, reversed the dismissal of his habeas petition. He walked out on August 27, 2020, after 44 years, 3 months, and 17 days. Governor Roy Cooper pardoned him on grounds of innocence on December 17, 2020. In January 2024 the City of Concord agreed to pay $22 million and the State of North Carolina $3 million to settle his civil-rights lawsuit.
Read the full case →Byron Halsey
New JerseyExoneratedByron Halsey spent 19 years in New Jersey prisons for the 1985 sexual assault and murders of the two young children of his girlfriend, Margaret Urquhart, in the Plainfield rooming house where they all lived. Police interrogated Halsey — a man with a sixth-grade education and severe learning disabilities — for roughly 30 hours over a 40-hour span until he signed a statement that prosecutors used as a confession, and they stopped investigating neighbor Clifton ("Cliff") Hall. DNA testing obtained by the Innocence Project in 2006 excluded Halsey and identified Hall as the source of crime-scene evidence; Halsey's convictions were vacated on May 15, 2007, and all charges were dismissed on July 9, 2007.
Read the full case →Kennedy Brewer
MississippiExoneratedThe Registry documents official misconduct alongside the bite-mark testimony that convicted Brewer — evidence and process failures that, combined with the later-discredited forensic testimony, contributed to his wrongful conviction and death sentence.
Read the full case →Anthony Ways
New JerseyExoneratedA key witness testified at a post-conviction hearing that she had been coached by the prosecutor and that police let her keep drugs they had planted on her in exchange for her cooperation — testimony that, along with a named alternate suspect who repeatedly admitted guilt to others, led to Ways's conviction being reversed.
Read the full case →Stephon Downer
New JerseyActive caseStephon Downer was convicted in 2002 of the March 1997 felony murder of Carlos Ruiz in Camden County, NJ. Four witnesses say he was not at the scene and have independently identified another man, Jimel Quann (known as "Rat Rat"), as the person involved in the robbery and shooting. The surviving eyewitness, Edelmiro Robles, has since said he could not confirm his identification and that detectives told him Downer was the shooter before he picked him from a photo array. A jailhouse informant has also said he can no longer recall the substance of any conversation with Downer. Downer has now spent over 20 years incarcerated.
Read the full case →Dayonte Resiles
Florida (Broward County)Active caseJill Halliburton Su was found dead in her Davie, Florida home on September 8, 2014, bound and stabbed in a bathtub. Nine days later, a DNA database search returned the name of Dayonte Resiles, then twenty years old, with no known connection to the victim or her family. He was arrested the following day. The State's case rested on DNA. Prosecutors told jurors that Mr. Resiles' DNA was recovered from items at the scene and that this established he was the killer. The defense argued throughout that a DNA association does not establish who committed a homicide, when the DNA was deposited, or how it got there. His first trial ended in a mistrial in December 2021 under extraordinary circumstances: the jury returned a manslaughter verdict, and when jurors were polled, one said she did not agree with it. Following the mistrial, a juror stated that some jurors had been unwilling to convict on the greater charge because of his race. A retrial three months later produced a first-degree murder conviction. The Fourth District Court of Appeal affirmed in a one-word per curiam opinion in January 2025. Mr. Resiles has maintained his innocence for twelve years, including in a letter to the court and in open court at his own sentencing. Xonorate is supporting his request for independent post-conviction review.
Read the full case →Xonorate Investigates
Read Xonorate's ongoing investigations and case developments.
Resources
Legal resources, innocence organizations, and support services.
The bigger picture
At 61% of the full Registry, official misconduct is the single most common documented factor in wrongful convictions nationally — and it's disproportionately concentrated in the highest-stakes cases (NRE's 2023 annual report found official misconduct in 85% of that year's homicide exonerations). Xonorate's documented cases show the range the Registry's broad definition covers: from Ricky Jackson's case, where police fed a story to a child witness and suppressed his attempted recantation, to Anthony Ways's, where a witness said she was coached by a prosecutor and given drugs by police in exchange for testimony. Neither required a citywide conspiracy — each required a handful of officials deciding not to share what they knew.
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Sources / research
- Exonerations by Contributing Factor ↗
National Registry of Exonerations — Full registry, 3,861 exonerations since 1989
- Understanding the Registry — contributing factor definitions ↗
National Registry of Exonerations