Wyoming Age of Consent Laws and the Close in Age Exception for Statutory Offenses

For an 18-, 19-, or 22-year-old adult in Cheyenne, Casper, Laramie, or Sheridan, a consensual romantic relationship with a high school teenager can turn into a life-altering felony prosecution overnight. These investigations rarely begin because the minor claims force was used; instead, they are typically triggered when an angry parent discovers explicit text messages, learns of a breakup, or finds out about a pregnancy and demands that local police press charges. Once law enforcement gets involved, the minor's personal desire to drop the matter carries zero legal weight.

Wyoming criminal statutes do not use the phrase statutory rape. Instead, age-based sexual offenses are prosecuted under a strict four-tier felony framework known as Sexual Abuse of a Minor (Wyo. Stat. § 6-2-314 through Wyo. Stat. § 6-2-317). For an adult defendant, whether a consensual relationship is completely lawful or a felony carrying up to 50 years in prison depends on exact birthdates, statutory age-gap calculations, and whether any position of authority existed.

The Legal Age of Consent in Wyoming (16) and Statutory Traps for Adults

As a general baseline under Wyo. Stat. § 6-2-308(a) and the sexual abuse of a minor statutes, the age of consent for sexual intercourse and sexual contact in Wyoming is 16 years old. In most standard situations where no authority relationship exists, a 16- or 17-year-old has the legal capacity to consent to sexual acts with an adult. However, adult defendants in Wyoming frequently walk into three devastating statutory traps where engaging with a 16- or 17-year-old remains a serious felony:

• The Indecent Liberties Trap for 16-Year-Olds (Wyo. Stat. § 6-2-316(a)(iv)): Even though 16 is the baseline age of consent for sexual intrusion, Wyo. Stat. § 6-2-316(a)(iv) makes it a third-degree felony (up to 15 years in prison) for an actor aged 17 or older to knowingly take immodest, immoral, or indecent liberties with a minor who is less than 17 years of age (which includes 16-year-olds) if the minor is at least 4 years younger than the actor. In Pierson v. State, 956 P.2d 1119 (WY Supreme Court 1998), the Wyoming Supreme Court examined the complex history of prosecuting indecent liberties involving 16-year-old minors before the legislature codified the current 4-year age-gap rule for victims under 17.
• Positions of Authority Over 16- and 17-Year-Olds: Under Wyo. Stat. § 6-2-316(a)(ii) (sexual intrusion, up to 15 years) and Wyo. Stat. § 6-2-317(a)(ii) (sexual contact, up to 5 years), if an adult is 20 years of age or older, at least 4 years older than a 16- or 17-year-old victim, and occupies a position of authority (such as a teacher, coach, employer, boss, or youth counselor defined under Wyo. Stat. § 6-2-301(a)(iv)), the minor's consent is legally invalid. Furthermore, if the actor is a legal guardian or close familial relative under Wyo. Stat. § 6-2-314(a)(ii), sexual intrusion with a minor under 18 is First-Degree Sexual Abuse of a Minor carrying up to 50 years.
• Digital Sexting and Explicit Photos Under 18: Even when physical intimacy with a 16- or 17-year-old is lawful under Wyoming's close-in-age rules, requesting, receiving, or saving nude photographs of anyone under 18 is prosecuted as Sexual Exploitation of a Child under Wyo. Stat. § 6-4-303 (carrying 5 to 12 years in prison) and federal law under 18 U.S.C. § 2252A.

Wyoming's Romeo and Juliet Provisions (Proximity in Age Exceptions)

To prevent young adults and older teenagers from being branded as lifelong felony sex offenders for consensual peer relationships, the Wyoming Legislature built specific close-in-age exceptions (commonly called Romeo and Juliet provisions) directly into the statutory elements of Wyo. Stat. § 6-2-315, Wyo. Stat. § 6-2-316, and Wyo. Stat. § 6-2-317. Rather than requiring the defendant to prove an exception at trial, the prosecution cannot even file a valid criminal charge unless the statutory age gap is exceeded.

How the 4-Year and 3-Year Age Gap Rules Protect Young Adults

For an adult defendant (or older teen aged 17+) accused of consensual sexual activity with a minor aged 13, 14, or 15, Wyoming law applies a strict 4-year proximity rule:

• When the Minor is 13, 14, or 15 and the Actor is 17 or Older: Under Wyo. Stat. § 6-2-315(a)(i) (Second-Degree Sexual Abuse of a Minor for sexual intrusion) and Wyo. Stat. § 6-2-316(a)(i) (Third-Degree Sexual Abuse of a Minor for sexual contact), a crime occurs only if the victim is at least four (4) years younger than the actor.
• Practical Example of the Close-in-Age Shield: If an 18-year-old college freshman in Laramie engages in consensual sexual intercourse with a 15-year-old high school sophomore, the age difference is roughly 3 years (less than the 4-year threshold). Because the victim is not at least 4 years younger, the conduct does not violate Wyo. Stat. § 6-2-315(a)(i) or Wyo. Stat. § 6-2-316(a)(iv).
• Practical Example of Crossing the Felony Line: Conversely, if a 19-year-old adult engages in consensual intercourse with a 14-year-old (or a 20-year-old with a 15-year-old), the 4-year age gap is met. As seen in Weston v. State, 451 P.3d 758 (WY Supreme Court 2019), crossing that 4-year threshold exposes the adult defendant to a Second-Degree Sexual Abuse of a Minor conviction carrying up to 20 years in prison-even if the minor willingly participated or initiated the encounter.
• Zero Exception for Adults When the Minor is Under 13: If the actor is 16 years of age or older and the victim is less than 13 years old, there is no Romeo and Juliet exception. Any sexual intrusion is First-Degree Sexual Abuse of a Minor (Wyo. Stat. § 6-2-314(a)(i)), and any sexual contact is Second-Degree (Wyo. Stat. § 6-2-315(a)(ii)). A 3-year age gap exception for victims under 13 applies only when the actor is also a juvenile under age 16 (Wyo. Stat. § 6-2-316(a)(iii)).

Mistake of Age Defenses in Wyoming (And Why They Often Fail)

Adult defendants arrested in Cheyenne or Casper after meeting someone at a house party, college bar, or on a dating app requiring users to be 18+ almost always ask why they are being prosecuted when the minor lied about their age. In Wyoming, the mistake-of-age defense is governed by Wyo. Stat. § 6-2-308, and it is far narrower in courtroom practice than most defendants realize.

Under Wyo. Stat. § 6-2-308(a), when the criminality of conduct depends on a victim being under 16 years of age, it is an affirmative defense that the actor reasonably believed the victim was 16 years of age or older. However, under Wyo. Stat. § 6-2-308(b), if criminality depends upon a victim being under 12 or under 14 years of age-or under the strict liability provisions of first-degree sexual abuse of a minor-it is no defense that the actor did not know the victim's age or reasonably believed they were older.

Even when an adult defendant is legally permitted to raise a reasonable mistake-of-age defense regarding a 14- or 15-year-old, the defense frequently fails for three strategic reasons:

1. The Burden of Reasonableness: Simply testifying that the minor verbally claimed to be 17 or 18, wore makeup, or had an adult dating app profile is rarely viewed as objectively reasonable by a Wyoming jury if the minor attended a local high school or lived with their parents. Defense counsel must present concrete corroboration, such as proof that the minor displayed a realistic fake driver's license or gained entry into an age-restricted 21+ venue.
2. Conceding the Physical Act: Raising an affirmative defense under Wyo. Stat. § 6-2-308(a) effectively requires admitting that the sexual intrusion or contact occurred, stripping the defense of the ability to challenge whether the sexual act happened at all.
3. Strict Statutory Interpretation: As the Wyoming Supreme Court noted in Bowlsby v. State, 302 P.3d 913 (WY Supreme Court 2013) and Marfil v. State, 366 P.3d 969 (WY Supreme Court 2016), Wyoming courts strictly enforce the plain text of sexual abuse of a minor statutes, and factual consent by the minor is completely barred as a defense.

How Age Gaps Dictate the Severity of the Felony Charge in Wyoming

As affirmed by the Wyoming Supreme Court in Norgaard v. State, 339 P.3d 267 (WY Supreme Court 2014), an adult defendant aged 21 or older convicted of sexual intrusion with a minor under 13 under Wyo. Stat. § 6-2-314(a)(i) faces a mandatory minimum sentence of 25 to 50 years in prison, or mandatory life without parole for a repeat conviction under Wyo. Stat. § 6-2-306(e).

Step-by-Step Defense Process for Adult Defendants in Wyoming

Step 1: Ceasing All Contact and Refusing Police Pretext Calls

When parents report an underage relationship to police or the Wyoming Division of Criminal Investigation, Cheyenne, detectives immediately instruct the minor or the minor's parents to text or call the adult suspect to record an admission. Because physical DNA is often absent in delayed-report statutory cases, a recorded apology or admission on the phone is frequently the prosecution's strongest piece of evidence. Cease all contact with the minor and family immediately and invoke your right to counsel.

Step 2: Auditing Exact Birthdates and Statutory Age-Gap Elements

Your defense lawyer will calculate the exact number of years, months, and days between your date of birth and the accuser's date of birth on the specific dates of the alleged conduct. If the age difference was 3 years and 11 months rather than a full 4 years, a charge under Wyo. Stat. § 6-2-315(a)(i) or Wyo. Stat. § 6-2-316(a)(i) may be legally defective on its face.

Step 3: Preserving Age-Representation Evidence for Wyo. Stat. § 6-2-308(a)

If the minor misrepresented their age as 16 or older, defense counsel immediately preserves screenshots of the minor's dating app profile, social media bios listing a college or adult birth year, photos of fake IDs, and witness statements through subpoenas issued pursuant to Wyo. R. Crim. P. 17 to support an affirmative defense under Wyo. Stat. § 6-2-308(a).

Step 4: Circuit Court Preliminary Hearing and Challenging Probable Cause

Following arrest, the case is docketed in the local circuit court, such as the Natrona County Circuit Court, Casper or the Albany County Circuit Court, Laramie. Depending on strategy, the defense either contests probable cause at the preliminary hearing or submits a waiver of preliminary hearing under Wyo. R. Crim. P. 5.1 in exchange for early discovery disclosures before transfer to the Laramie County District Court, Cheyenne or the Sheridan County District Court, Sheridan.

Step 5: Negotiating Non-Registry Dispositions or Litigating at Trial

For young adult defendants with no prior criminal record, avoiding lifetime sex offender registration under Wyo. Stat. § 7-19-302 and prison time is the paramount goal. Defense counsel may leverage evidentiary weaknesses and favorable psychosexual evaluations to negotiate a charge reduction or first-offender deferral under Wyo. Stat. § 7-13-301 where legally permissible, or take the case to trial.

How Much Does Legal Defense Cost for Statutory Offenses in Wyoming?

• Felony Defense Attorney Retainers: Defending a Second-, Third-, or Fourth-Degree Sexual Abuse of a Minor charge in Wyoming typically costs $12,000 to $30,000 for pre-trial representation, and $30,000 to $65,000+ if litigated through a District Court jury trial.
• Forensic Psychosexual Evaluations: Commissioning a private evaluation to prove to the prosecutor and judge that a young adult defendant is not a predatory risk costs $2,500 to $4,500.
• Digital Forensics & Private Investigation: Extracting social media proof of age deception and interviewing peer witnesses ranges from $2,000 to $6,000.

How Long Does a Sexual Abuse of a Minor Case Take in Wyoming?

Adult defendants must understand a unique aspect of Wyoming law: Wyoming is one of the few states in the nation with no statute of limitations for any criminal offense. Prosecutors can file Sexual Abuse of a Minor charges months or even years after a teenage relationship ends. Once an arrest is made, the Circuit Court preliminary hearing occurs within 10 to 20 days, and the District Court case generally takes 6 to 14 months to resolve under the 180-day speedy trial framework of Wyo. R. Crim. P. 48(b). Connect with an experienced Wyoming criminal defense attorney in our directory to protect your future immediately.

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