Is there a place where adultery is a crime? Most countries I know of have regulations on marriage or partnership and there's a registration office for a change in marital status. But as far as I can tell, that's purely a civil matter. Getting married may change your tax quotes, or who inherits your stuff once you pass away, but it has no implications in criminal law. In former times, this was different, as e.g. the bible requests that a couple that is found during adultery shall be stoned. Now Bob finds his wife Alice in bed with Charles. Does he have any way of Alice getting a fine or a jail sentence? Or some other legal action against her (assuming he doesn't want to get divorced)? Or is it really true that the state doesn't care anything about a marriage except keeping a registry of it? Edit: The comments and the first answer suggest that there are US states that have such laws (which I didn't expect). However I'm particularly interested in European countries. And also in possible penalties. The linked question seems to indicate that even where such a law exists, it is not enforced.
united-states Criminal Consequences Of Adultery State Criminal Laws In a large majority of U.S. jurisdictions, adultery is no longer a crime (assuming the sexual act is consensual and not incestuous) including 35 U.S. states, the District of Columbia, and the several U.S. territories. &quot;States which have decriminalised adultery in recent years include West Virginia (2010), Colorado (2013), New Hampshire (2014), Massachusetts (2018), Utah (2019), Idaho (2022), and Minnesota (2023).&quot; Adultery is rarely enforced criminally in the 15 states and Puerto Rico, as of 2023, that still do have adultery laws on the books that have not been held unconstitutional by state courts. This is, in part, due to doubts about the constitutionality of these crimes under federal and state constitutions, in part, due to changing norms, and in part, due to the limited benefit of a misdemeanor or felony prosecution to all persons involved (and the state) in such cases. The birth of a child who is conceived with a father other than the mother's husband while the mother is married is not automatically conclusive proof of the crime of adultery under either state law or under the U.S. Code of Military Justice. For example, under South Carolina law adultery involves either &quot;the living together and carnal intercourse with each other&quot; or, if those involved do not live together &quot;habitual carnal intercourse with each other&quot; which is more difficult to prove. Similarly, in Florida, the crime is &quot;Living in open adultery&quot;. Also, in the case of a prosecution of an unmarried man, knowledge that the woman is married would typically be an element of the crime of adultery, and it is similarly never a crime to be raped in the U.S., even if you are married. In 12 of the states where adultery is still a crime (Arizona, Alabama, Florida, Georgia, Illinois, Kansas, Maryland, Mississippi, New York, North Dakota, South Carolina, and Virginia), it is a petty offense (the maximum punishment in Maryland is a $10 fine), or is a misdemeanor. But it continues to be a felony in 3 states (Oklahoma, Michigan, and Wisconsin) and is punishable most severely among those states in Michigan who someone convicted of adultery faces up to four years in prison and in Oklahoma where the maximum sentence is five years in prison. Military Justice It is a crime that is actively enforced for active duty members of the U.S. military under the U.S. Code of Military Justice. In the U.S. military, adultery is a potential court-martial offense, falling under the General article (Art. 134). The Manual for Courts-Martial defines (para. 99) &quot;Extramarital sexual conduct&quot; as being: Elements.(1) That the accused wrongfully engaged in extramarital conduct as described in subparagraph c.(2) with a certain person; (2) That, at the time, the accused knew that the accused or the other person was married to someone else; and (3) That, under the circumstances, the conduct of the accused was either: (i) to the prejudice of good order and discipline in the armed forces; (ii) was of a nature to bring discredit upon the armed forces; or (iii) to the prejudice of good order and discipline in the armed forces and of a nature to bring discredit upon the armed forces. U.S. military law on adultery was revised in 2019 in order to include same-sex encounters in the offense. Neither the U.S. military, nor any U.S. state, has penalties for adultery that differ depending upon whether or not the adultery results in the birth of child. Federal Constitutionality The U.S. Supreme Court has not ruled on the constitutionality of adultery crimes since its ruling in Lawrence v. Texas, 539 U.S. 558 (2003) which decriminalized any kind of sex between consenting unmarried adults that does not constitute prostitution, as a matter of constitutional law (including sex between married adults with each other). The highest court of the State of Massachusetts declared its adultery statute unconstitutional as a violation of the U.S. Constitution in the case of Commonwealth v. Stowell, 449 N.E.2d 357, 389 Mass. 171 (1983). But, the U.S. Supreme Court's decision in Bowers v. Hardwick, 478 U.S. 186, 106 S.Ct. 2841, 92 L.Ed.2d 140 (1986), holding that the U.S. Constitution did not invalidate a state sodomy statute in a case involving tow consenting men, largely discouraged constitutional challenges until Lawrence overruled Bowers v. Hardwick in 2003. See, e.g., Oliverson v. W. Valley City, 875 F. Supp. 1465, 1482 (D. Utah 1995) (holding that &quot;The claim of the right to commit adultery cannot be considered “fundamental.&quot;, and denying a constitutional challenge to a police officer being disciplined for adultery while not on duty, in reliance on Bowers v. Hardwick). In the two decades prior to Lawrence, however, no state or federal court has declared an adultery statute unconstitutional on U.S. Constitutional grounds, despite the fact that there have been a handful of adultery prosecutions in this time period in some of the states where adultery remains a crime. For example, there was one prosecution in Virginia in 2004, and another one in New York State in 2010. On the other hand, the last time someone was prosecuted for adultery in Wisconsin was in 1990. I am not aware of any post-Lawrence adultery prosecution by a state government that has led to appeal that produced a published or binding precedents on the issue of the constitutionality of these state adultery statutes. This is, in part, because prosecutions for adultery in state courts are rare and are misdemeanor prosecutions in most cases. But, appeals of minor misdemeanor convictions are rare. Courts within the U.S. military justice system, at least, have expressly rejected constitutional challenges to the Uniform Code of Military Justice's adultery prohibition since Lawrence was decided. See, e.g., C. Scott Maravilla, &quot;Prosecuting Adultery Under the Uniform Code of Military Justice After Lawrence V. Texas&quot; (July 29, 2007). Other Criminal Law Considerations Giving birth itself, regardless of the circumstances, is never a crime in the United States. Some sexual acts which can sometimes result in the conception of a child are crimes (most obviously incest and rape, including statutory rape and abuse of a position of trust rape). But these offenses are not related to marital status unlike a true adultery charge. A murder of the spouse or the non-spouse with whom that spouse is engaged in adultery in the heat of passion immediately following the discovery of them &quot;in the act&quot; is a mitigating factor. This can reduce a murder charge to a manslaughter charge in many states. This incomplete defense to a murder charge is known as the &quot;heat of passion&quot; defense. Paternity The U.S. Supreme Court has also held that the &quot;other man&quot; in an affair with a married woman who gives birth as a result does not have a constitutional right to seek to have his paternity of the child legally established. See Michael H. v. Gerald D., 491 U.S. 110 (1989). Thus, the standing of the &quot;other man&quot; to bring suit to determine that he is the father of such a child is purely a matter of state law. The state laws addressing this question and some related questions are addressed in the article, &quot;TRUTH AND CONSEQUENCES: PART II: Questioning the Paternity of Marital Children&quot; (2002) by Paula Roberts. Civil Liability In a handful of U.S. states a husband can bring a lawsuit for money damages (called alienation of affections or &quot;criminal conversation&quot; despite the fact that it is a civil lawsuit) against someone who has sex with his wife. The vast majority of U.S. states have abolished such lawsuits, however. In fiscal years 2000–2007, there were an average of 230 alienation of affections filings in North Carolina per year — a bit over 0.5% of the number of all divorces. The tort is also recognized in Hawaii, Illinois, Mississippi, New Mexico, South Dakota, and Utah, but it is frequently litigated only in North Carolina and in Mississippi. Many of the states where the tort is not commonly used impose restrictions on it that make it less attractive. In Illinois, Hawaii and New Mexico, these limitations make it exceedingly difficult to prevail in an alienation of affections case and recover substantial monetary damages. The standard of proof is lower in Utah and South Dakota, which continue to have actively litigated alienation of affections suits, although not used as often in these states as in North Carolina and Mississippi, for reasons that are presumably unrelated to the relevant legal standards that apply to these lawsuits. Also, in a rape case, a rape victim can bring a civil lawsuit for money damages against the rapist for assault and battery in most cases, and in those cases, many states allow a spouse of a rape victim to bring a parallel lawsuit against the person who committed the assault that is called a lawsuit for loss of consortium. The right to sue for loss of consortium is not specific to rape cases; it applies in all lawsuits for personal injury where it is available. Civil lawsuits involving rape cannot be subject to arbitration requirements by a pre-dispute contract between the parties to submit all disputes between them to arbitration (e.g. in a suit between an employee and an employer related to conduct that facilitated a co-worker's rape of the employee under sex discrimination laws) under a federal law enacted effective in the year 2022. The U.S. Supreme Court has repeatedly declined to grant petitions for certiorari seeking to have laws establishing civil liability in these cases declared unconstitutional. Divorce Implications In most U.S. state, divorce is granted without regard to marital fault and adultery is not considered in alimony awards or property divisions. While every U.S. state has some form of no fault divorce, and number of U.S. states also have fault based divorce, and a number of U.S. states, however, allow consideration of adultery as a form of marital fault in divorce proceedings, including how much, if any alimony is awarded and in property divisions. No state would consider being raped an act of marital fault, however, even if this caused a wife to give birth to a child whose biological father was not her husband, and even if the husband wanted her to have an abortion. Selected Non-U.S. Criminal Adultery Laws Adultery is no longer a crime in any European country, Turkey, Australia, South Korea, Japan, Taiwan, the People's Republic of China, or India. Adultery is no longer a crime in most or all of Latin America. Adultery is a crime in the Philippines (in a manner that punishes married women more severely than married men). It is notable that in this case, that the Philippines has a significant Muslim minority population. Adultery is also a crime in Indonesia and in Bangladesh. Adultery is also a crime according to Wikipedia at the first link in this answer, in &quot;several sub-Saharan African Christian-majority countries.&quot; One of these countries is Rwanda. And, according to Wikipedia at the first link in this answer: In Muslim countries that follow Sharia law for criminal justice, the punishment for adultery may be stoning. There are fifteen countries in which stoning is authorized as lawful punishment, though in recent times it has been legally carried out only in Iran and Somalia. Countries which follow very strict versions of Sharia law in their criminal systems include Saudi Arabia, Iran, Brunei, Afghanistan, Sudan, Pakistan, 12 of Nigeria's 36 states (in Northern Nigeria) and Qatar; although these laws are not necessarily enforced. Al-Shabaab, a jihadist fundamentalist group based in East Africa (mainly Somalia) and Yemen also implements an extreme form of Sharia. Obviously, this answer is not absolutely complete. It leaves the status of a number of particular countries unresolved.
This is a mixed bag of so-called &quot;laws&quot;, often interpreted in an unfavorable or satirical light. Because of this, you might say that none (save one) of these laws are literally laws, but they are the effects of laws that do exist. I'll do my best to sort this out. A fine of $25 can be levied for flirting. Almost certainly an anti-prostitution law taken to the extreme. I only found one example of a bill, but it failed, and was only tangentially related. It's not hard to imagine that at some point, flirting was technically illegal. A license must be purchased before hanging clothes on a clothesline. This is most likely a satire of the actual law, which probably states that you cannot hang anything out your window or in your yard without a permit. Many cities and states have rules about what you can, and can't, put on your property. These are usually related to health and/or aesthetics. Carmel: A man can't go outside while wearing a jacket and pants that do not match. It's too hard to track this one down right now, but that sounds like a satire of something like a specific situation where a person must be wearing specific clothing. For example, I would imagine a firefighter or school crossing guard having these requirements for safety reasons. Citizens may not greet each other by &quot;putting one's thumb to the nose and wiggling the fingers&quot;. Edited for clarity While we do have the First Amendment right to Free Speech, it is sometimes recognized in jurisdictions that certain actions and phrases may pass the &quot;imminent lawless action&quot; exception. It is likely some kind of ordinance that prohibits being unnecessarily rude to the point where the offender may end up being assaulted or worse as a result of the gesture. This gesture was known as early as Shakespeare, with the &quot;I thumb my nose at thee&quot; line, also known as the &quot;cock-a-snook&quot; gesture in some regions. Of course, the actual law is probably much more nuanced than that, and this is just a funny way of reducing this law down to the most absurd example that someone could think of. Thanks to some comments, I just realized that this is very likely § 240.20 Disorderly conduct. A person is guilty of disorderly conduct when, with intent to cause public inconvenience, annoyance or alarm, or recklessly creating a risk thereof: ... In a public place, he uses abusive or obscene language, or makes an obscene gesture; or ... Several states have some sort of statute like this that are technically First Amendment Free Speech violations, yet generally recognized by those jurisdictions as having legal force, since the purpose is to discourage violence that can be caused by &quot;fighting words.&quot; Donkeys are not allowed to sleep in bathtubs in Brooklyn, N.Y. This is likely a structural integrity joke that doesn't hold up well (sorry, couldn't resist). Floors only have limited strength. If you look up the weight of a cast-iron bathtub and the maximum weight of a full-grown donkey, you'll find it weighs just less than a ton (about 1,800 pounds, assuming a heavy tub and large donkey). Someone probably saw a law about the maximum weight you can put on a floor, then looked up how much things weigh, and the joke practically writes itself. During a concert, it is illegal to eat peanuts and walk backwards on the sidewalks. Again, this is probably taken out of context, but I presume that someone was doing something stupid and got hurt or killed, so a law was written about not walking on the sidewalk without paying attention to where you were walking. For example, if a sidewalk had a open manhole cover or something, and a person fell in. This is just a hyperbole example of the actual law, whatever it may be. In New York, you can teach your pet parrot to speak, but not to squawk. Easy. Noise ordinance law somewhere. A parrot's squawk can exceed 105 dB, and is generally disruptive to living next door to you in a thin-walled apartment. This person just found something really loud, and translated this law to match that law's prohibition. It's unlikely you'll find a law this specific, but noise ordinance laws exist in many areas. My area is 75 dB during the day, 70 dB at night. In New York City it's illegal to shake a dust mop out a window. That's definitely still on the books. It's part of the littering law. Littering, sweeping, throwing, or casting any material such as ashes, garbage, paper, dust, or other garbage or rubbish into or upon any street or public place, vacant lot, air shaft, areaway, backyard, court, or alley is illegal. Throwing garbage out of windows (for example, from buildings or vehicles) is also a violation. In addition, no person may allow anyone under his/her control (agent or employee) to commit a littering, sweep- out, or throw-out violation. Merchants must put all sweepings into suitable garbage receptacles for pickup by a private carter. Residential units must put sweepings into suitable garbage receptacles for pick up by DSNY. Sanitation litter baskets may not be used for this purpose. It is against the law to throw a ball at someone's head for fun. As far as I can tell, this has a serious history. Carnival workers (&quot;carnies&quot;) often had setups that involved heavy solid balls. The kind that could literally cause concussions if they were hit in the head. Dunk tanks, knock-stuff-over games, and so on. Presumably, people thought it would be funny to assault the carnies, so laws were written. Of course, assault is already illegal, but it was probably put there was a way to let people know it was a serious situation. Jaywalking is legal, as long as it's not diagonal. That is, you can cross the street out of the crosswalk, but you can't cross a street diagonally. This is really just saying that there's no law prohibiting jaywalking specifically, but there are laws about when you're allowed to cross an intersection diagonally. Again, making it sound weird or strange. It's just a loophole in the lawbooks. Presumably, if people started getting hit while crossing mid-street, they'd add a new law to address that. Slippers are not to be worn after 10:00 P.M. This is likely another oversimplification. It's probably something more like &quot;you have to wear solid-soled shoes at night to protect your feet from broken debris and rats&quot; or something like that. Staten Island: You may only water your lawn if the hose is held in your hand. This is likely a water conservation law. Automated sprinklers and lawn sprinklers waste water. In an effort to combat that problem, requiring hand-holding your hose makes you more likely to not overwater your lawn. While riding in an elevator, one must talk to no one, and fold his hands while looking toward the door. Of this list, this one is presumably a satire law that makes a statement about societal customs in some places of New York. It's highly unlikely this would be real law, but rather an expectation of how to behave in an elevator if you didn't want to have a bad experience. So, overall, I'd say that virtually none of the laws actually read like they do on this list, but some variant of the law in a more generalized form probably does exist.
Of course The prosecution just needs to prove that the crime happened (or the defendant believed it to have happened) and you helped (in brief, there will be specific elements of the crime that each need to be proved). This would be easier if the primary crime had a convicted perpetrator but it’s not impossible without. Allow me to illustrate with an example. I will set out facts which are somewhat contrived and would not be so clear cut in a real case but for the purposes of the example please take them as undisputed and fully supported by evidence. John and Jill are in a relationship. This relationship is well known to be argumentative with frequent shouting matches and one or the other storming out. This does not amount to domestic violence by either party. John's friend Alan believes (wrongly) that there is domestic violence. During an argument Jill drops dead of a heart attack. John rings Alan distraught and says "I've killed her." Alan assumes (wrongly) that John has murdered Jill. Alan says "i'll take care of it. You go to your dad's". Alan (alone) disposes of the body. John is not guilty of murder (or indeed, anything). Alan is guilty of accessory to murder even though the actual crime never happened. The fact that Alan believed it happened is enough.
Yes. It is a crime almost everywhere to throw something at someone, even if it causes little or no injury. Usually it would be classified as "assault and battery" although if it damages clothing or other property, it could also be called, for example, "criminal mischief" which is intentional damage to property. It would also be a tort that could be enforced with civil damages in most places, although only nominal damages would be awarded and there would be no award for attorneys' fees. In practice, however, few people would press charges or turn to the police in such an incident, few police would take action based on the complaint because it is so trivial, and few people would sue in such a case. For what it is worth, the "living law" in Japan recognizes that someone has a duty to pay to clean your clothes or replace them if they can't be cleaned in such circumstances and most people appear to comply with that obligation without court involvement if the victim insists. Also, pie throwing as a political protest in Europe is also almost surely illegal under European law, although, again, this is rarely enforced by common political culture and tradition.
Short Answer SIMPLIFIED AND UPDATED BASED ON ADDITIONAL INFORMATION IN THE QUESTION: The marriage is valid, but their marriage will not allow the girlfriend to refuse to testify as a witness in the case. She can be compelled to testify against him under oath, but does not have to testify about the confidential communications that they have with each other after they get married (e.g. if he confesses to her while there are having a private conversation after they are married, while he is outside the jail, while he is meeting with his lawyer). All of her recorded statements made at any time, and everything that happens before they are married are available to be used as evidence at trial (assuming no other rule of evidence excludes it). Only confidential statements made between the wife and the criminal defendant while they are married can be excluded based upon their spousal status. END UPDATE Long Answer This question is about the marital privilege, which is created by statute or case law. There are actually two separate marital privileges that are analyzed separately. Also, I'm simplifying this answer to limit it to the "criminal case with a jury trial" situation. The rules are more complicated when it is not a criminal case, and in a bench trial as opposed to a jury trial, all references to the jury would instead be to the judge. But, almost everyone facing murder charges chooses a trial by jury instead of a bench trial, as is their right. The Husband-Wife Confidential Communications Privilege The stronger marital privilege applies to confidential communications made to a defendant's spouse during the marriage, which the defendant can insist not be presented to the jury. It doesn't matter if the spouse is still married to the defendant at the time of trial. The main exception to this privilege is for crimes committed against the spouse who is testifying, or to a crime committed against a child of either spouse. This privilege does not apply to anything that the defendant says to the girlfriend prior to getting married and does not apply to statements made by the defendant to the spouse when other people were present, and is similar to the attorney-client privilege or the parishioner-clergy privilege. In Florida this privilege, created by statute, reads as follows: Florida Evidence Code Section 90.504 Husband-wife privilege.— (1) A spouse has a privilege during and after the marital relationship to refuse to disclose, and to prevent another from disclosing, communications which were intended to be made in confidence between the spouses while they were husband and wife. (2) The privilege may be claimed by either spouse or by the guardian or conservator of a spouse. The authority of a spouse, or guardian or conservator of a spouse, to claim the privilege is presumed in the absence of contrary evidence. (3) There is no privilege under this section: (a) In a proceeding brought by or on behalf of one spouse against the other spouse. (b) In a criminal proceeding in which one spouse is charged with a crime committed at any time against the person or property of the other spouse, or the person or property of a child of either. (c) In a criminal proceeding in which the communication is offered in evidence by a defendant-spouse who is one of the spouses between whom the communication was made. In many states (and in federal court), this Husband-Wife privilege for confidential communications has an exception for cases where the husband and wife jointly carry out a crime or fraud. But, Florida does not have this exception to the Husband-Wife privilege for confidential communications in state court criminal cases. In federal criminal cases, the case law under Federal Rule of Evidence 501 creates a substantially similar privilege for the purposes of this question. Federal Rule of Evidence 501 is as follows: The common law — as interpreted by United States courts in the light of reason and experience — governs a claim of privilege unless any of the following provides otherwise: the United States Constitution; a federal statute; or rules prescribed by the Supreme Court. But in a civil case, state law governs privilege regarding a claim or defense for which state law supplies the rule of decision. Since this is a criminal case, the last sentence of Federal Rule of Evidence 501 does not apply. There are also not any rules regarding this topic that have actually been prescribed by the U.S. Supreme Court. And, neither the U.S. Constitution nor any federal statute creates a husband-wife or spousal testimonial privilege. So, this issue is governed in federal court by "The common law — as interpreted by United States courts in the light of reason and experience." The relevant common law rules apply nationwide, although different federal court of appeals circuits may apply them slightly differently when the U.S. Supreme Court hasn't supplied a clear rule. The Spousal Testimonial Privilege The weaker marital privilege (sometimes called the spousal testimonial privilege) in many states, which is similar to the 5th Amendment right of a criminal defendant not to testify at trial, is a criminal defendant's right to prevent his current wife (but not a former spouse) from testifying against him at trial on any matter whatsoever, regardless of whether it relates to something that happened during the marriage or not. This marital privilege often has many exceptions for serious crimes and domestic violence in jurisdictions where it applies. In the federal courts, however (pursuant to case law developed under Federal Rule of Evidence 501), this weaker privilege belongs to the spouse called as a witness rather than to the criminal defendant. The spouse of a criminal defendant isn't required to testify against a current spouse in federal criminal prosecutions, but the spouse and not the criminal defendant gets to decide if the spouse will refuse to testify. There may be exceptions to the federal spousal testimonial privilege in cases where one spouse is accuses of a crime against the spouse or a child of one of the spouses, where they are joint participants in a crime, or where the competency of the criminal defendant is at issue (see Wikipedia). The only exceptions which might plausibly apply in a federal criminal trial are if the criminal defendant is the father of your son, or if the criminal defendant and his girlfriend whom he marries were joint participants in the crime, neither of which seems likely to be the case here. In Florida, the weaker marital privilege also known as the spousal testimonial privilege cannot be asserted in state court criminal prosecutions but may be asserted in federal court criminal prosecutions. (See, e.g., here).
In many US states (and in the UK), statutory rape is a strict liability offense. This means that there is no intent requirement at all; the only allowable defenses are those that negate the actual act (there was no sex, the person was of age, or sometimes that the action was not a conscious or voluntary action), it falls within a statutory exception to the crime, or there is an applicable defense that has nothing to do with intent. Many general defenses do not apply to strict liability crimes; in particular, "I thought X when Y was true" tries to show there was to intent to commit the crime, which is irrelevant. In Michigan (where the crime took place), statutory rape is evidently such an offense. That throws some standard defenses into doubt, because anything based on negating criminal intent doesn't matter. However, Michigan does specifically say that it is not criminal to have sex with a person under 16 if they are your legal spouse; this is a very common exception to statutory rape laws. So, marriage is a way to not risk jail for statutory rape in Michigan. However, things do vary by state. In Indiana, it is specifically a defense that the defendant had a reasonable belief that the victim was over the age of consent (unless it was a forcible rape).
Even before the police have any idea who did it, Bob is guilty of whatever wrong he did. However, if you want this to be a legal question and not a moral one, we should assume that you really want to know "Can Bob be convicted of murder, if the evidence proves that he did do it?". Yes, he can. See Morris v. State, 214 S.W.3d 159. The critical question was whether the defendant understood the charges (he did) and whether he could assist in his defense (he could). The desideratum of being able to assist in your own defense only goes so far. On the other hand, maybe no, per Wilson v. US. A government expert witness "testified that appellant had permanent retrograde amnesia and would not be able to aid in his own defense in terms of remembering any of the acts alleged in the indictment". The crucial difference seems to be whether one just has loss of memory, vs. loss of memory connected with some other mental disorder. [Addendum] Per Dusky v. United States 362 U.S. 402, competence to stand trial depends on whether the accused has sufficient present ability to consult with his lawyer with a reasonable degree of rational understanding -- and whether he has a rational as well as factual understanding of the proceedings against him. I am not aware of any exceptions e.g. whether this is not the case with strict liability crimes like statutory rape, and since it is generally held that "competency" is a requirement mandated by the due process clause, I don't think there could be an exception.
Laws vary by state, of course. In Wisconsin, according to the 1993 case State v. Neumann: the offense of second-degree sexual assault by sexual intercourse does not require proof of intent and therefore someone who claimed to be too drunk to know what he was doing was still guilty. Although that was a case involving adults and therefore a different statute, I think the statutes are similar enough to produce a similar result in a case involving a minor. But even though intent isn't required, according to the 2007 case State v. Lackershire she's still be not guilty in Wisconsin. It flat out says that: If the defendant was raped, the act of having sexual intercourse with a child does not constitute a crime. Additionally, in your case, there was a gun to her head. Under Wisconsin law, the woman could not be guilty of statutory rape, because of this law: 939.46 Coercion. (1) A threat by a person other than the actor's coconspirator which causes the actor reasonably to believe that his or her act is the only means of preventing imminent death or great bodily harm to the actor or another and which causes him or her so to act is a defense to a prosecution for any crime based on that act, except that if the prosecution is for first-degree intentional homicide, the degree of the crime is reduced to 2nd-degree intentional homicide. The paper you link to mentions several possible defenses like coercion, and how each defense is not applicable in some states. I don't think it ever clearly establishes that there is a state where there is no defense. The example you (and the paper) give occurred in Florida. I couldn't find an applicable statute in Florida law, but that appears to be because it's in common law instead of a statute. According to the 1981 Florida case Wright v. State: Florida has recognized the common law defense of duress as a defense to crimes other than homicide so I don't think the woman would have been guilty under Florida law, either. The paper states that she was in fear for her life and that of her daughters, and it is extremely apparent in hindsight that her fear was reasonable. I imagine that if the author was able to find an actual case where a victim was prosecuted under similar circumstances (or even one where the victim clearly could have been prosecuted under the law of that state) he would have used that case as his example instead. It seems that he couldn't... and that might tell you something. He probably used this example because it was sensational, but it doesn't seem that the woman was guilty under applicable law.