Criminally Negligent Homicide in Oregon: Sentencing and Defenses

Criminally negligent homicide in Oregon is a Class B felony under ORS 163.145, punishable by up to 10 years in prison and a fine of up to $250,000.¹²³ The charge applies when a person causes another’s death through criminal negligence: failing to be aware of a substantial and unjustifiable risk of death, where that failure is a gross deviation from the standard of care a reasonable person would have used.⁴ It sits below murder and manslaughter, but a conviction still carries lifetime consequences.

What Counts as Criminal Negligence

The statute is short. The definition of criminal negligence is where the actual line gets drawn. A person acts with criminal negligence when they fail to be aware of a substantial and unjustifiable risk that a result will occur, and that failure represents a gross deviation from the care a reasonable person would observe.⁴

The word “gross” does real work. A brief lapse, an ordinary traffic mistake, or a split-second misjudgment is not enough. A driver who glances at a phone and drifts across a lane might be civilly negligent. A driver who takes a known-unsafe vehicle onto a highway at high speed in dense fog while exhausted is closer to the criminal negligence threshold. Whether particular conduct crosses that line is usually the central fight in the case.

How It Differs From Manslaughter and Murder

Oregon’s homicide offenses form a ladder, and the mental state on each rung is what changes.

Murder requires intentional killing or acting with extreme indifference to human life while intentionally engaging in dangerous conduct.
First-degree manslaughter involves recklessness under circumstances showing extreme indifference to human life, or causing death while driving under the influence with three or more prior DUII convictions in the preceding 10 years. It is a Class A felony carrying up to 20 years.⁵
Second-degree manslaughter involves recklessly causing a death, meaning the person was aware of the risk and consciously chose to ignore it. It is also a Class B felony.⁶
Criminally negligent homicide involves a person who was not aware of the risk at all, but should have been, because the danger was so obvious that missing it was a gross deviation from reasonable behavior.⁴

Awareness is the hinge between second-degree manslaughter and criminally negligent homicide. A reckless person knows the risk and pushes forward anyway. A criminally negligent person never perceived the risk, though a reasonable person would have. Prosecutors and defense attorneys spend a lot of time arguing which side of that line the defendant was on.

What Prosecutors Must Prove

To win a conviction, the state has to prove three things beyond a reasonable doubt: the defendant failed to perceive a substantial and unjustifiable risk, that failure was a gross deviation from how a reasonable person would have acted, and the defendant’s conduct caused the victim’s death.¹

Causation is not a simple yes-or-no. The prosecution does not need to show the defendant’s negligence was the only cause of death. If it was a substantial contributing factor, that can be enough. Other contributing causes, including the victim’s own actions, a preexisting medical condition, or a delayed medical response, do not automatically break the chain. They do give the defense material to argue with.

The risk itself has to be substantial and unjustifiable, not remote or theoretical. In vehicular cases especially, prosecutors lean on expert witnesses to show that the situation the defendant created posed an obvious, serious danger any reasonable person would have recognized. Accident reconstructionists, medical examiners, and toxicologists are common at trial.

How Sentencing Works

The 10-year and $250,000 numbers are statutory maximums. Real sentences are set using Oregon’s sentencing guidelines grid, maintained by the Oregon Criminal Justice Commission. The grid plots crime seriousness against the defendant’s criminal history, and the intersection produces a presumptive sentence the judge uses as a starting point.⁷

For a defendant with little or no criminal history, the presumptive sentence for many felonies falls into the probation range, meaning local custodial sanctions measured in days rather than years in prison. The more extensive the criminal history, the higher the defendant climbs on the grid, and the more likely prison time becomes the presumptive result.

Criminally negligent homicide is not a Measure 11 offense, so judges keep meaningful discretion. That discretion runs both directions. A judge can depart upward or downward from the presumptive sentence when the circumstances justify it.

Restitution is not optional. Under ORS 137.106, the district attorney must present evidence of the victim’s economic losses at sentencing, and the court must order the defendant to pay the full amount.⁸ In a homicide case that typically covers funeral and burial costs, the victim’s lost income, and any medical bills incurred before death. Restitution is separate from any fine and separate from any civil wrongful death judgment.

What Pushes a Sentence Up or Down

Aggravating factors that can push a sentence above the presumptive range include intoxication at the time of the offense, multiple victims, prior convictions for similar conduct, and ignoring known safety warnings.

Intoxication is worth flagging on its own, because it can change the charge itself, not just the sentence. Causing a death while driving under the influence can elevate the case to first-degree manslaughter when the driver has three or more DUII convictions in the previous 10 years.⁵ Even without that history, Oregon courts have treated vehicular homicide involving intoxication as punishable at the manslaughter level.⁶ A case that opens as a criminally negligent homicide investigation can turn into a manslaughter prosecution once toxicology results come back.

Mitigating factors that may reduce a sentence include a clean record, real cooperation with law enforcement, immediate efforts to help the victim such as calling 911 or performing CPR, and outside circumstances that impaired the defendant’s ability to perceive the risk, such as an unforeseen mechanical failure or a sudden medical event behind the wheel. These can sometimes move the outcome from incarceration to probation.

Common Defenses

Because criminal negligence is a matter of degree, these cases leave more room for defense arguments than many other felonies. The line between ordinary carelessness and a gross deviation is inherently judgment-laden.

The most common defense is that the conduct never rose to the level of criminal negligence in the first place. A mistake in judgment, even a bad one, is not automatically criminal. Defense counsel may use experts or a careful reconstruction of the scene to argue the defendant behaved the way many reasonable people would have. If the jury sees ordinary negligence rather than a gross deviation, an acquittal follows.

Causation is the other main pressure point. If the defense can show that an intervening cause was the primary driver of the death, such as the victim’s own choices, a medical error during treatment, or a preexisting condition, the causal chain weakens. The defendant’s actions have to be a substantial factor, not just a background condition.

Plea negotiations matter too. Where the evidence is strong but not overwhelming, prosecutors sometimes agree to reduce the charge to a lesser offense in exchange for a guilty plea. A well-negotiated plea can be the difference between prison and probation.

Consequences That Outlast the Sentence

A conviction creates a permanent felony record with effects that follow a person for decades.

Firearms

Federal law under 18 U.S.C. § 922(g) prohibits anyone convicted of a crime punishable by more than a year in prison from possessing or receiving a firearm or ammunition.⁹ Oregon’s ORS 166.270 makes it a separate crime for a convicted felon to possess a firearm. Oregon has a narrow path to regain firearm rights after 15 years for people convicted of a single felony, but that path explicitly excludes anyone whose felony involved criminal homicide.¹⁰ Criminally negligent homicide is a criminal homicide by definition, so restoration is unavailable.

Jobs and Professional Licenses

Healthcare, law enforcement, education, and financial services all run background checks that routinely disqualify felony applicants. The Federal Aviation Administration may suspend or revoke pilot certificates on a felony conviction, and bars applicants with drug or alcohol-related offenses from applying for a new certificate for at least a year.¹¹ State licensing boards run their own reviews, and a homicide conviction, even a negligence-based one, is among the hardest to overcome.

Expungement Is Off the Table

Oregon lets some felony convictions be set aside under ORS 137.225, but the statute excludes person felonies as classified by the Oregon Criminal Justice Commission.¹² Criminally negligent homicide, as a crime that causes a death, is a person felony. The conviction is effectively permanent.

Immigration

Non-citizens face potential immigration consequences, though the analysis is more complex than with intentional crimes. Federal immigration authorities generally treat offenses involving only negligence as not qualifying as crimes involving moral turpitude, one of the main triggers for immigration consequences. Immigration judges can look beyond the record of conviction to examine the actual conduct, though, and the classification of any particular conviction is determined by federal immigration case law rather than Oregon courts. Anyone facing both a criminal charge and possible immigration exposure needs counsel experienced in both areas. A plea that looks favorable on the criminal side can be catastrophic on the immigration side.

Civil Wrongful Death Lawsuits

A criminal case and a civil wrongful death case arising from the same death are entirely separate. Oregon’s ORS 30.020 lets the personal representative of the deceased bring a civil action for damages regardless of what happens in the criminal case. A defendant can be acquitted of criminally negligent homicide and still lose a wrongful death suit, because the civil burden of proof (preponderance of the evidence) is far lower than the criminal one (beyond a reasonable doubt). Civil judgments can be substantial, covering funeral costs, lost future income, and non-economic damages such as loss of companionship. Court-ordered restitution and any civil judgment are independent obligations; paying one does not automatically satisfy the other.

Post-Conviction Relief

Oregon law allows convicted individuals to petition for post-conviction relief under ORS 138.530. Relief is available when the petitioner shows that the conviction resulted from a substantial denial of constitutional rights, that the court lacked jurisdiction, that the sentence exceeded what the law allows, or that the underlying statute was unconstitutional.¹³ Ineffective-assistance-of-counsel claims fall under the constitutional rights ground, evaluated against a standard of reasonable competence under the circumstances.

A successful petition can lead to resentencing or a new trial. The process is slow. Petitions often take years, and the petitioner has to prove that a constitutional violation actually affected the outcome. Simple disagreement with the verdict or the sentence is not enough.

1
Oregon State Legislature. Oregon Code 163.145 – Criminally Negligent Homicide
2
Oregon Public Law. Oregon Code 161.605 – Maximum Terms of Imprisonment for Felonies
3
Oregon Public Law. Oregon Code 161.625 – Fines for Felonies
4
Oregon Public Law. Oregon Code 161.085 – Definitions With Respect to Culpability
5
Oregon Public Law. Oregon Code 163.118 – Manslaughter in the First Degree
6
Oregon Public Law. Oregon Code 163.125 – Manslaughter in the Second Degree
7
Oregon Criminal Justice Commission. Oregon Sentencing Guidelines Grid
8
Oregon Public Law. Oregon Code 137.106 – Restitution to Victims
9
Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
10
Oregon Public Law. Oregon Code 166.270 – Possession of Weapons by Certain Felons
11
Federal Aviation Administration. Can I Get a Pilot License if I Have a Felony Conviction
12
Oregon Public Law. Oregon Code 137.225 – Order Setting Aside Conviction or Record of Criminal Disposition
13
Oregon Public Law. Oregon Code 138.530 – When Relief Must Be Granted