No General Duty to Act

No General Duty to Act

Two scenes show why the rule on omissions is both uncomfortable and carefully drawn. In the first, Dexter has resolved to kill Jimmy, a nonswimmer who spends his afternoons at the end of a dock over deep water. Dexter arrives to find that Jimmy has already fallen in and is begging for a life buoy, and Dexter does not throw it but sits back and watches Jimmy drown.¹ In the second, a viewer sees a late-night appeal showing starving children who could be fed for a few pennies a day, decides not to give, and weeks later reads that the children have died.² Each person had a chance to save people in peril with minimal effort, and the visible difference is state of mind. Dexter wanted a death, while the viewer knew only of a significant risk, a difference that would separate murder from involuntary manslaughter if an omission could count at all.³ The common-law answer is that an omission generally cannot count: a prosecutor can establish the act element by proving a voluntary act but generally cannot establish it by proving a voluntary omission, so both Dexter and the viewer go free because neither acted; each failed to act.⁴

Dexter's case is the harder one to accept, and the structure of criminal liability explains why it still comes out this way. His wish that Jimmy drown is a bad thought, and bad thoughts alone cannot constitute a crime; the law requires an act, or an omission where there is a legal duty to act.⁵ A guilty mind is therefore necessary and still insufficient, which is the same separation between act and mental state that the preceding section drew. Because Dexter performed no act and had no duty, nothing remains on which liability could rest, however deliberate his inaction was.

The Model Penal Code writes this default into § 2.01(3). Subsection (1) permits liability to rest on an omission the person was physically capable of performing.⁶ Subsection (3) then narrows that permission: liability for an offense may not be based on an omission unaccompanied by action unless the omission is expressly made sufficient by the law defining the offense, or a duty to perform the omitted act is otherwise imposed by law.⁷ That matches the general Anglo-American position that, unless a penal statute itself requires the action, criminal liability for an omission arises only when tort law or some other law imposes a duty to act.⁸ The same baseline governs the stranger. The general American rule is that no legal duty requires a person to rescue a total stranger, and whether to reverse that rule by statute, with Good Samaritan laws that would require a bystander to rescue or at least call for help, remains a live policy debate.⁹

The rule has reasons beyond tradition, and they come from the structure of the problem. A person who acts creates a danger that would not otherwise exist, while a person who omits merely fails to stop a danger that others could have stopped just as well. If every failure to help could ground liability, the duty would fall on everyone in a position to help, and the offense definition would give no way of saying who must act, how much effort or risk the duty demands, or where a moral obligation stops and a legal one begins. The same limit protects fair notice, because confining omission liability to defined sources of duty lets a person know in advance when inaction is punishable. A further reason lies in the person's own life: nobody is obliged to give up the interests of a full life in a quest to prevent every evil that could be prevented, and the extra effort a saintly person would make is admirable conduct that the law does not demand.¹⁰ The sources of duty the law does recognize usually answer the problem of limits, because each singles out someone who was specially placed to prevent the harm and on whom others relied. Tort law draws its baseline the same way, imposing no duty to act unless a statute, contract, relationship, status, property interest, or some other special circumstance creates one.¹¹

Applied to the facts, the default yields the same answer whatever the omitter's motive or the ease of rescue. In Commonwealth v. Konz, a wife was held to be under no duty to seek medical aid for her husband, a diabetic who had chosen to forgo insulin and died of diabetic ketoacidosis.¹² Change the relationship in the drowning scene and the answer shifts. A mother who stands and watches her child drown in a swimming pool ordinarily has a duty to rescue because of the parent-child relationship, and she could be charged with negligent homicide if she had the mental state that crime requires.¹³ What separates the mother from Dexter, and from the wife in Konz, is whether the law imposed a duty to act in that situation, which is the question the later sections answer source by source.

The words "unaccompanied by action" confine the duty requirement to pure omissions.¹⁴ When a person's course of conduct includes an affirmative act, the prosecution can charge the offense through that act and has no need to find a legal duty, because the act is conduct the person controlled and is exactly what the voluntary act requirement already covers.¹⁵ This boundary also keeps the duty requirement from swallowing ordinary negligence cases, where almost any careless act can be redescribed as a failure to take more care. The approach resembles the earlier-conduct analysis, in which the law looks across the whole course of conduct for an act it can attribute to the person.

Legislatures also separate declining to intervene from affirmatively assisting in other fields. Washington v. Glucksberg shows a State declaring that withholding or withdrawing life-sustaining treatment is not suicide while separately prohibiting assisted suicide, a pairing that many States share.¹⁶ That is a different legal setting, and nothing in the analysis of § 2.01(3) depends on it.

Section 2.01(3) leaves two routes open, and the next sections take them in turn.¹⁷ The first applies when the law defining the offense itself makes the failure to act sufficient. The second applies when a duty to perform the omitted act comes from law outside the offense, through sources such as a statute, a contract, or a special relationship like the one between parent and child.¹⁸ Until the facts fit one of those routes, a pure omission cannot support liability, and students lose this issue when they let a bad motive or an easy rescue stand in for a legal duty, because neither one supplies it.