Great Bodily Harm in Wisconsin: Charges, Penalties, and Defenses

Great bodily harm in Wisconsin is defined by statute as an injury that creates a substantial risk of death, causes serious permanent disfigurement, or results in permanent or protracted loss of function of a body part or organ.¹ When a victim’s injuries meet that threshold, the charges jump from misdemeanor or low-level felony territory into felony classes carrying anywhere from 6 to 60 years in prison, mandatory restitution, and a lifetime firearm ban under both state and federal law.

Where Great Bodily Harm Sits on the Injury Scale

Wisconsin recognizes three tiers of physical harm, and the tier controls the charge.

Bodily harm is the lowest: any physical pain, injury, illness, or impairment of physical condition.¹ A bruise or swelling qualifies. Offenses at this level are typically misdemeanors.

Substantial bodily harm is defined by a specific list: a laceration needing stitches, staples, or tissue adhesive; any bone fracture; a broken nose; a burn; a petechia; temporary loss of consciousness, sight, or hearing; a concussion; or the loss or fracture of a tooth.¹ These are generally low-level felonies.

Great bodily harm sits at the top. Examples that typically meet the standard include stab wounds damaging internal organs, injuries that leave significant permanent scarring, loss of a limb, or blinding in one eye. The word “protracted” carries real weight. Even if a victim ultimately recovers full function, months of impairment can satisfy the definition. Because the line between substantial and great bodily harm is often clinical rather than obvious, medical testimony usually drives the outcome.

Charges That Turn on Great Bodily Harm

Aggravated Battery

Battery escalates to aggravated battery under Wis. Stat. § 940.19 when the victim suffers great bodily harm, and the felony class depends on what the defendant intended. Intending to cause bodily harm (any physical pain or injury) but producing great bodily harm is a Class H felony. Intending to cause great bodily harm from the start is a Class E felony.² Prosecutors look at the weapon used, the location of the blows, and anything the defendant said to establish which intent applies.

A separate provision covers conduct that creates a substantial risk of great bodily harm and results in bodily harm, also a Class H felony.² 2025 Wisconsin Act 24 renumbered § 940.19 to § 940.60; the substance of the law is unchanged.

Reckless Injury

Reckless injury requires no intent to hurt anyone. It requires conduct so reckless that great bodily harm was a foreseeable result.

First-degree reckless injury under Wis. Stat. § 940.23(1) applies when someone recklessly causes great bodily harm under circumstances showing utter disregard for human life. That “utter disregard” standard is measured objectively, asking whether a reasonable person in the defendant’s position would have recognized the risk of death or serious injury.³ It is a Class D felony.

Second-degree reckless injury under § 940.23(2) covers the same reckless conduct and resulting great bodily harm without the utter-disregard element. It is a Class F felony.³ Firing a gun into a crowd typically shows utter disregard; aggressive but less extreme recklessness often does not.

OWI Causing Great Bodily Harm

Operating a vehicle while intoxicated and causing great bodily harm is a Class F felony under Wis. Stat. § 940.25. The statute reaches operating while intoxicated, with a detectable amount of a restricted controlled substance, or above the legal blood alcohol limit, and it extends to harm caused to an unborn child. No intent to injure is required; the illegal act of driving while impaired plus the resulting injury is enough.

First-Degree Sexual Assault

A sexual assault that causes great bodily harm to the victim is first-degree sexual assault under Wis. Stat. § 940.225(1)(a), a Class B felony.⁴ A Class B felony carries up to 60 years in prison, the harshest classification below life imprisonment.⁵

Prison Exposure by Felony Class

Wisconsin’s lettered felony system runs from Class A (most severe) to Class I (least). The maximum penalties for the classes most often charged in great-bodily-harm cases are:⁵

Class B felony: up to 60 years in prison. Applies to first-degree sexual assault with great bodily harm.
Class D felony: up to 25 years in prison and a $100,000 fine. Applies to first-degree reckless injury.
Class E felony: up to 15 years in prison and a $50,000 fine. Applies to aggravated battery with intent to cause great bodily harm.
Class F felony: up to 12 years and 6 months in prison and a $25,000 fine. Applies to second-degree reckless injury and OWI causing great bodily harm.
Class H felony: up to 6 years in prison and a $10,000 fine. Applies to aggravated battery where the defendant intended only bodily harm but caused great bodily harm.

These are statutory ceilings. Judges can impose less, but they cannot exceed the maximum before any enhancer is added.

How the Sentence Is Split

Every Wisconsin felony prison sentence is bifurcated: a period of confinement followed by a period of extended supervision in the community. The two parts together cannot exceed the class maximum. The confinement portion has its own cap: up to 15 years for a Class D, up to 10 years for a Class E, up to 7 years and 6 months for a Class F, up to 3 years for a Class H. Extended supervision must be at least 25% of the confinement term.⁶ Extended supervision is not freedom; violating a condition can trigger revocation and a return to prison.

Enhancers That Push the Sentence Higher

Several enhancers add time on top of the base maximum.

Committing a crime while possessing, using, or threatening to use a dangerous weapon adds up to 5 additional years when the base felony carries a maximum of more than 5 years, and up to 4 years when the base felony’s maximum sits between 2 and 5 years.⁷ It does not apply when a weapon is already an element of the offense.

A defendant who was convicted of a felony within 5 years before the current offense qualifies as a repeater. The enhancement adds up to 6 years if the current crime’s maximum exceeds 10 years, and up to 4 years if the maximum sits between 1 and 10 years.⁸ Time in prison does not count toward the 5-year lookback, so someone who served three years and offended again four years after release still falls within the window.

A domestic abuse offense with two or more prior domestic abuse convictions in the previous 10 years adds 2 years. The same enhancer can elevate a misdemeanor to a felony.⁹

Enhancers stack. A first-degree reckless injury charge with a weapon enhancer and a repeater enhancer could push the theoretical maximum well above 25 years.

Restitution Is Expected, Not Optional

Wisconsin courts must order restitution unless the court finds a substantial reason not to and states that reason on the record.¹⁰ Restitution can cover medical costs (surgery, hospitalization, psychiatric care, physical therapy, rehabilitation), lost wages the victim could not earn because of the injury, and property damage valued at the item’s worth on the date of damage or the date of sentencing, whichever is greater.

In domestic abuse cases the waiver standard is tighter: the court must find undue hardship on the defendant or the victim and explain that finding on the record.¹⁰

Restitution is independent of any civil suit the victim may bring. Civil cases use a lower burden of proof (preponderance of the evidence rather than beyond a reasonable doubt), so a not-guilty verdict in the criminal case does not block a personal injury claim.

What a Conviction Costs After Prison

Wisconsin prohibits anyone convicted of a felony from possessing a firearm. Violating that ban is itself a Class G felony carrying up to 10 years in prison and a $25,000 fine.¹¹ Federal law adds a parallel ban under 18 U.S.C. § 922(g) for anyone convicted of a crime punishable by more than one year.¹² Every great-bodily-harm felony clears that threshold, so both bans apply.

Employment takes a hit, though not an automatic one. Federal hiring decisions turn on case-by-case factors like how long ago the offense occurred and whether it relates to the job.¹³ Private employers running background checks commonly screen out candidates with aggravated battery or reckless injury convictions for roles involving vulnerable populations, security clearances, or fiduciary trust.

Federal housing programs impose only two mandatory bans: methamphetamine manufacturing in federally assisted housing, and sex offenders with a lifetime registration requirement.¹⁴ Beyond those, local public housing agencies set their own screening policies and have broad discretion. A violent felony makes approval meaningfully harder in practice.

Defenses Worth Knowing

Self-Defense

Wisconsin permits force to prevent or stop what you reasonably believe is an unlawful attack, but caps how much. Deadly force (force likely to cause death or great bodily harm) is justified only if you reasonably believe it is necessary to prevent imminent death or great bodily harm to yourself.¹⁵ Responding to a shove with a knife is not proportional, and a self-defense claim in that scenario would likely fail.

Wisconsin’s castle doctrine applies when someone is unlawfully and forcibly entering your home, vehicle, or place of business while you are inside. The court must presume you reasonably believed deadly force was necessary, and you are not required to retreat.¹⁵

If you provoked the attack through your own unlawful conduct, you lose the self-defense privilege unless the resulting attack placed you in reasonable fear of death or great bodily harm and you exhausted every reasonable means of escape before using deadly force.¹⁵

Lack of Intent

Aggravated battery requires proof of intent, either to cause bodily harm or to cause great bodily harm depending on the subsection charged.² A genuine accident with no intent to make physical contact defeats the element. The defense has little purchase against reckless injury charges, which by definition require no intent to harm.

Challenging Whether the Injury Qualifies

Because great bodily harm has a precise statutory definition, defense attorneys often argue the injury does not meet it. A broken bone that healed within weeks might fit substantial bodily harm but not great bodily harm, which requires permanent or protracted loss of function. The argument can mean the difference between a Class H felony and a Class I felony, or between a felony and a misdemeanor, and competing medical experts usually decide the question.

1
Wisconsin State Legislature. Wisconsin Statutes 939.22 – Words and Phrases Defined
2
Wisconsin State Legislature. Wisconsin Code 940.19 – Battery, Substantial Battery, Aggravated Battery
3
Wisconsin State Legislature. Wisconsin Code 940.23 – Reckless Injury
4
Wisconsin State Legislature. Wisconsin Statutes 940.225 – Sexual Assault
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Wisconsin State Legislature. Wisconsin Code 939.50 – Classification of Felonies
6
Wisconsin State Legislature. Wisconsin Statutes 973.01 – Bifurcated Sentence of Imprisonment and Extended Supervision
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Wisconsin State Legislature. Wisconsin Statutes 939.63 – Penalties, Use of a Dangerous Weapon
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Wisconsin State Legislature. Wisconsin Statutes 939.62 – Increased Penalty for Habitual Criminality
9
Wisconsin State Legislature. Wisconsin Statutes 939.621 – Increased Penalty for Certain Domestic Abuse Offenses
10
Wisconsin State Legislature. Wisconsin Statutes 973.20 – Restitution
11
Wisconsin State Legislature. Wisconsin Statutes 941.29 – Possession of a Firearm
12
Bureau of Alcohol, Tobacco, Firearms and Explosives. Identify Prohibited Persons
13
U.S. Office of Personnel Management. I Have Been Arrested and Have a Criminal Record – Will That Automatically Keep Me From Getting a Federal Job?
14
HUD Exchange. Are Applicants With Felonies Banned From Public Housing or Any Other Housing Funded by HUD?
15
Wisconsin State Legislature. Wisconsin Statutes 939.48 – Self-Defense and Defense of Others