Wyoming Criminal Law: Felonies, Misdemeanors, and Sentencing Framework
Wyoming's criminal law framework governs the classification, prosecution, and punishment of offenses under Title 6 of the Wyoming Statutes, supplemented by procedural rules established by the Wyoming Supreme Court and the Wyoming Rules of Criminal Procedure. The distinction between felonies and misdemeanors determines which court has jurisdiction, what penalties apply, and what collateral consequences follow a conviction. This page covers the statutory classification structure, sentencing ranges, jurisdictional boundaries, and the operational mechanics of Wyoming's criminal penalty system.
- Definition and Scope
- Core Mechanics or Structure
- Causal Relationships or Drivers
- Classification Boundaries
- Tradeoffs and Tensions
- Common Misconceptions
- Checklist or Steps (Non-Advisory)
- Reference Table or Matrix
Definition and Scope
Wyoming criminal law operates under a binary classification system rooted in Wyoming Statutes Title 6, which organizes offenses into felonies and misdemeanors. A felony is any offense for which the maximum authorized imprisonment exceeds one year, while a misdemeanor carries a maximum term of one year or less. This threshold mirrors the federal classification standard found in 18 U.S.C. § 3559, though Wyoming's penalty structure is defined independently by state statute.
The scope of this reference covers only offenses prosecuted under Wyoming state law in Wyoming state courts. Federal criminal offenses prosecuted in the U.S. District Court for the District of Wyoming fall under federal jurisdiction and are not covered here. Offenses occurring on tribal lands within Wyoming's borders may be subject to tribal jurisdiction or federal law under the Major Crimes Act (18 U.S.C. § 1153), which is also outside this page's scope. Municipal ordinance violations prosecuted in Wyoming municipal courts operate under separate local codes and are addressed separately at Wyoming Municipal Courts.
The regulatory context for the Wyoming legal system situates these statutory classifications within the broader constitutional and administrative framework governing state authority over criminal law.
Core Mechanics or Structure
Wyoming felonies are divided into three lettered classes — A, B, and C — with distinct imprisonment ranges and fine ceilings established by Wyo. Stat. § 6-10-101:
- Class A Felony: Not more than life imprisonment, or death where authorized by statute (e.g., first-degree murder under Wyo. Stat. § 6-2-101).
- Class B Felony: Not more than 20 years imprisonment.
- Class C Felony: Not more than 10 years imprisonment.
Misdemeanors are divided into two classes:
- Class A Misdemeanor: Not more than 1 year imprisonment and a fine not exceeding $1,000 (Wyo. Stat. § 6-10-102).
- Class B Misdemeanor: Not more than 6 months imprisonment and a fine not exceeding $750.
Sentencing is imposed by district court judges for felonies and by circuit court judges for misdemeanors under the Wyoming Rules of Criminal Procedure. Judges retain broad discretionary authority within statutory ranges. Wyoming does not operate under a mandatory sentencing grid comparable to the United States Sentencing Guidelines; instead, judicial discretion is constrained by statutory minimums and maximums and guided by aggravating and mitigating factors identified in the record.
The Wyoming Department of Corrections administers felony incarceration. Misdemeanor sentences of 6 months or less are typically served in county jails under county sheriff administration.
Causal Relationships or Drivers
Several structural factors determine how an offense is charged and classified. Legislative definition is primary: each offense statute specifies the penalty class. Where a statute is silent on class, the penalty specified in the offense section controls (Wyo. Stat. § 6-10-101(c)).
Prosecutorial charging decisions shape classification in practice. When a single act could support charges at multiple levels — such as aggravated assault (Class C Felony) versus simple assault (Class B Misdemeanor) — the prosecutor's charging choice, constrained by available evidence, dictates the applicable sentencing range.
Prior conviction history operates as a statutory enhancer in Wyoming. For example, third-offense domestic battery under Wyo. Stat. § 6-2-501(f) elevates what would otherwise be a misdemeanor to a felony. Similarly, habitual criminal enhancements under Wyo. Stat. § 6-10-201 extend maximum imprisonment for defendants with prior felony convictions to 25 years or life, depending on the number of prior convictions.
The value of property or drugs involved triggers classification thresholds in many economic and controlled-substance offenses. Under Wyoming's theft statute (Wyo. Stat. § 6-3-402), theft of property valued at $1,000 or more constitutes a felony; theft below $1,000 is a misdemeanor.
Classification Boundaries
The boundary between felony and misdemeanor classification is set by statute and is not subject to judicial discretion at the classification stage. Courts cannot reclassify a charged offense downward absent a plea agreement or legislative amendment.
Wyoming does not use an "infraction" or "violation" tier as a formal statutory category below misdemeanor, unlike states such as California that maintain a three-tier system. Minor traffic violations and regulatory penalties in Wyoming are typically processed as civil matters or under municipal codes rather than as criminal infractions.
The Wyoming Sentencing Commission advises the legislature on classification consistency and has published analyses of offense gravity scores, though Wyoming has not adopted formal sentencing guidelines with binding grid scores.
Wobbler offenses — offenses that can be charged as either a felony or misdemeanor — exist in Wyoming law. Fraud statutes and some controlled substance offenses include value or quantity thresholds that shift classification. The threshold determination is made at the charging stage based on alleged facts.
For context on how these offenses move through the court system, Wyoming criminal procedure covers arrest, arraignment, preliminary hearing, and trial mechanics.
Tradeoffs and Tensions
Wyoming's broad judicial discretion within statutory ranges produces inconsistency across the 23 judicial districts. Two defendants convicted of the same Class C felony may receive substantially different sentences depending on district, individual judge, and local norms. The Wyoming Sentencing Commission has documented inter-district variation in its advisory reports but lacks authority to mandate uniformity.
Plea bargaining resolves the substantial majority of felony cases before trial and effectively allows reclassification of charges through agreement. A Class B felony charge may be reduced to a Class C felony or even a misdemeanor through negotiated plea, which can have significant downstream effects on collateral consequences such as firearm rights, voting restoration, and occupational licensing under Wyoming statutes governing civil disabilities.
Mandatory minimum sentences — where they exist in Wyoming law — constrain judicial discretion most severely. Drug offenses involving quantities triggering enhanced penalties under Wyo. Stat. § 35-7-1031 carry mandatory minimum terms that cannot be suspended or probated. This creates tension between legislative sentencing goals and case-specific judicial assessment of culpability.
Collateral consequences of felony conviction in Wyoming extend beyond incarceration: loss of the right to possess firearms under both Wyo. Stat. § 6-8-102 and 18 U.S.C. § 922(g), potential loss of professional licenses, and sex offender registration requirements under Wyo. Stat. § 7-19-301 for qualifying offenses. These collateral consequences often have more lasting practical impact than the sentence itself. Wyoming expungement and record sealing addresses available relief mechanisms.
Common Misconceptions
Misconception: Probation means no conviction. A suspended sentence or probation in Wyoming follows an entry of conviction, not a diversion from it. Unless a deferred prosecution agreement is in place under Wyo. Stat. § 7-13-301, a probated sentence is a felony or misdemeanor conviction of record with all associated collateral consequences.
Misconception: Misdemeanor convictions carry no lasting consequences. Class A misdemeanor convictions for domestic battery create firearm possession disabilities under federal law (18 U.S.C. § 922(g)(9)) regardless of state-level classification. A Wyoming misdemeanor domestic battery conviction can therefore trigger permanent federal firearm disability.
Misconception: Wyoming uses a sentencing grid. Wyoming does not have a presumptive sentencing grid. The Wyoming Sentencing Commission produces advisory materials, but no matrix mandates a specific sentence based on offense level and criminal history, as exists under the federal system or in states like Minnesota.
Misconception: All felonies are prosecuted in district court. Initial appearances and preliminary hearings for felonies are conducted in Wyoming circuit courts. Final felony adjudication — trials and sentencing — occurs in Wyoming District Courts. The circuit court acts as the entry point, not the final forum. Wyoming District Courts and Wyoming Circuit Courts address each court's specific jurisdiction.
Checklist or Steps (Non-Advisory)
The following describes the structural sequence through which a Wyoming felony case progresses under the Wyoming Rules of Criminal Procedure:
- Arrest or Citation — Law enforcement detains the accused; booking occurs at county jail.
- Initial Appearance — Circuit court judge advises defendant of charges, sets bail under Wyo. Stat. § 7-10-101.
- Preliminary Hearing (Felony) — Circuit court determines whether probable cause exists to bind the case over to district court; held within 20 days of initial appearance for in-custody defendants.
- Information or Indictment — Prosecutor files formal charging document in district court; grand jury indictment is constitutionally optional in Wyoming under Wyo. Const. Art. 1, § 9.
- Arraignment in District Court — Defendant enters a formal plea.
- Pretrial Motions — Suppression motions, discovery disputes, and other pretrial matters are resolved.
- Plea or Trial — Case resolves by guilty plea, nolo contendere, or jury/bench trial.
- Presentence Investigation (PSI) — Wyoming Department of Corrections probation and parole staff prepare a report for the sentencing judge.
- Sentencing Hearing — District court imposes sentence within the statutory range applicable to the conviction class.
- Appeal — Defendant may appeal to the Wyoming Supreme Court under W.R.A.P. Rule 2.01.
Reference Table or Matrix
| Offense Class | Maximum Imprisonment | Maximum Fine | Supervising Court | Incarceration Facility |
|---|---|---|---|---|
| Class A Felony | Life / Death (statute-specific) | Not specified by §6-10-101 | Wyoming District Court | Wyoming DOC State Prison |
| Class B Felony | 20 years | Not specified by §6-10-101 | Wyoming District Court | Wyoming DOC State Prison |
| Class C Felony | 10 years | Not specified by §6-10-101 | Wyoming District Court | Wyoming DOC State Prison |
| Class A Misdemeanor | 1 year | $1,000 | Wyoming Circuit Court | County Jail |
| Class B Misdemeanor | 6 months | $750 | Wyoming Circuit Court | County Jail |
Sources: Wyo. Stat. § 6-10-101; Wyo. Stat. § 6-10-102; Wyoming Rules of Criminal Procedure.
The full range of Wyoming criminal offense categories, including controlled substance schedules and their penalty classes, is accessible through the Wyoming Legislature's official statutes portal. The home index for this site provides access to additional reference materials on Wyoming's legal system structure.
References
- Wyoming Statutes Title 6 — Crimes and Offenses (Wyoming Legislature)
- Wyoming Statutes Title 7 — Criminal Procedure (Wyoming Legislature)
- Wyoming Statutes Title 35, § 35-7-1031 — Controlled Substances Act (Wyoming Legislature)
- Wyoming Rules of Criminal Procedure (Wyoming Supreme Court)
- Wyoming Rules of Appellate Procedure (Wyoming Supreme Court)
- Wyoming Sentencing Commission
- Wyoming Constitution (Wyoming Legislature)
- 18 U.S.C. § 3559 — Sentencing Classification of Offenses (U.S. House Office of the Law Revision Counsel)
- 18 U.S.C. § 922(g) — Unlawful Acts, Firearm Disabilities (U.S. House Office of the Law Revision Counsel)
- 18 U.S.C. § 1153 — Offenses Committed Within Indian Country (U.S. House Office of the Law Revision Counsel)
- Wyoming Department of Corrections