by Claude Opus 5.5
Should there be a legal duty to report a sexual assault you know is taking place? What are the strongest liberal objections?
In most common-law systems, including England and Wales and most American states, there is no general legal duty to help a stranger in danger, or to report a crime in progress. A person can watch an assault and walk away without committing any offence. Many civil-law systems take a different view. France makes it an offence to fail to assist a person in danger when one could do so without risk, and Germany has a similar provision. A few American states, including Massachusetts and Rhode Island, introduced narrow duties to report certain violent crimes after the 1983 Big Dan’s tavern case in New Bedford, in which a woman was gang-raped while bystanders watched.
The reported facts behind these seminars, that around fifty fraternity members received messages during the night and no one called the police, make the question vivid. Should there be a legal duty to report a sexual assault one knows is taking place?
The case for a duty
The moral case is strong. If someone knows that a person is being sexually assaulted and could summon help with a phone call, at no risk to themselves, almost everyone agrees they ought to. The question is whether the law should require what morality plainly demands.
Several arguments support a legal duty. It would protect victims by increasing the chance that someone acts. It would express society’s judgement that standing by is unacceptable. It would counteract the diffusion of responsibility that makes groups slow to act, by making each person individually accountable. And it would remove the excuse, available now, that one was not legally obliged to do anything.
Joel Feinberg, a leading liberal theorist of criminal law, argued that well-drafted “bad Samaritan” laws are consistent with liberal principles. Failing to prevent serious harm, when one easily could, can itself be a way of harming others, and so falls within the harm principle.
The strongest liberal objections
Liberals nonetheless raise several serious objections.
First, liberty. A duty to act is more intrusive than a duty to refrain. Prohibitions leave people free to do anything except the forbidden act; positive duties require them to do something specific, at a time not of their choosing. Liberals are wary of laws that conscript citizens into the service of the state, even for good ends.
Second, line-drawing. A duty to report must say what counts as knowing, how certain one must be, what counts as reporting, and how quickly. Each line will be arbitrary at the margins, and people will be prosecuted for misjudging ambiguous situations. A person who saw an ambiguous message at 3 a.m. and was not sure what it meant would face criminal liability for guessing wrong.
Third, the victim’s autonomy. Survivors of sexual violence do not always want police involvement. Some fear not being believed, some want to avoid the criminal process, some have good reason to distrust the police. A duty to report takes that decision away from them and gives it to bystanders and the state. Feminist and survivor-centred critics have raised exactly this concern about mandatory reporting rules on campuses.
Fourth, unequal enforcement. Laws that criminalise omissions give prosecutors wide discretion over whom to charge. Experience suggests that such discretion is not exercised evenly, and that marginalised groups may be disproportionately targeted.
Fifth, perverse incentives. A duty to report may lead people to avoid knowing: to leave group chats, to stop reading messages, to keep away from situations where they might learn something. It may also deter people from reporting after the fact, if doing so would reveal that they knew earlier.
Weighing the objections
Some of these objections are weaker than they look in the specific case of an assault in progress. The liberty cost of a phone call is very small. The line-drawing problem can be reduced by requiring actual knowledge, not suspicion, and by defining the duty as alerting emergency services rather than intervening. Feinberg’s point that such duties fit within the harm principle remains persuasive.
Other objections are more serious. The victim-autonomy objection is real, though it applies more strongly to reporting after the fact than to summoning help during an assault, when the victim may be unable to make any decision at all. The enforcement and incentive objections are empirical, and there is little evidence either way about how such laws operate in practice.
A middle position
A plausible middle position distinguishes between a duty to summon help during an ongoing assault and a duty to report a past one. The first is narrow, protects someone who cannot protect herself, and costs the bystander almost nothing. The second raises the survivor-autonomy problem much more sharply, because once the immediate danger is over, the decision about whether to involve the police should usually belong to the person harmed.
For discussion
Would a legal duty have changed what happened in a group chat like the one described? Some will say yes, because people respond to law. Others will say no, because people who would not act out of decency are unlikely to act out of fear of an obscure offence. The disagreement reveals different assumptions about what law is for: changing behaviour, expressing values, or punishing wrongdoing after the fact.