Wyo. Stat. » Wyo. Stat. / Title 06 - Crimes and Offenses / Chapter 4 - OFFENSES AGAINST MORALS, DECENCY AND FAMILY / Article 4 - OFFENSES AGAINST THE FAMILY
Wyoming Statutes

Wyo. Stat. § 6-4-405 (2026)

Endangering children; controlled substances;

✓ current as of May 2026
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penalty.

     (a) Unless properly stored and pursuant to a valid
practitioner's medication order or valid prescription, no person
shall knowingly and willfully cause or permit any child to:

          (i) Absorb, inhale or otherwise ingest any amount of
methamphetamine or fentanyl;

          (ii) Remain in a room, dwelling or vehicle where the
person knows methamphetamine or fentanyl is being manufactured
or sold; or

          (iii) Enter and remain in a room, dwelling or vehicle
that the person knows is being used to manufacture or store
fentanyl or methamphetamines, or the hazardous waste created by
the manufacture of fentanyl or methamphetamines.
     (b) No person having the care or custody of a child shall
knowingly and willfully permit the child to remain in a room,
dwelling or vehicle where that person knows that illicit
methamphetamine or illicit fentanyl is possessed, stored or
ingested.

     (c) Any person who violates any of the provisions of
subsection (a) or (b) of this section is guilty of endangering a
child punishable by imprisonment for not more than five (5)
years, a fine of not more than five thousand dollars
($5,000.00), or both.
Notes of Decisions
Cited in 21 cases (7 in the last 5 years), 2006–2026 · leading case: Granzer v. State, 2008 WY 118 (Wyo. 2008).
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Granzer v. State, 2008 WY 118 (Wyo. 2008). · cites it 10× “Granzer was arrested and charged with endangerment of a child, GL, in violation of Wyo. Stat. Ann. § 6-4-405 (a)(iii) (LexisNexis 2007).”
Butz v. State, 2007 WY 152 (Wyo. 2007). · cites it 14× “Butz was arrested and charged with child endangerment, in violation of Wyo. Stat. Ann. § 6-4-405 (b) (LexisNexis 2007), for allowing his daughters to remain in a dwelling where methamphetamine was possessed.”
Baker v. State, 2011 WY 123 (Wyo. 2011). · cites it 12× “§ 35-7-1059 (a)(iv); and Counts V and VI, child endangerment, in violation of Wyo. Stat. Ann. § 6-4-405 (a)(ii). On remand, he was sentenced to terms of six to eight years imprisonment on each of the first two counts, with the two sentences to run concurrently.”
Baker v. State, 2010 WY 6 (Wyo. 2010). · cites it 9× “The district court did not fail to adequately instruct the jury regarding the elements of Wyo. Stat. Ann. § 6-4-405 (a)(i1). [Baker] was not prejudiced by a jury instruction that required the jury to deliberate regarding the conspiracy counts III and IV pursuant to Wyo.”
Morris v. State, 2009 WY 88 (Wyo. 2009). · cites it 8× “3d at 655 , we held no plain error occurred when the district court did not instruct the jury on the meaning of "knowingly and willfully" in the context of Wyo. Stat. Ann. § 6-4-405 (b) *1106 (LexisNexis 2009), the child endangerment statute.”
Granzer v. State, 2010 WY 130 (Wyo. 2010). · cites it 5× “[¶4] Granzer was arrested and later charged with one count of felony child endangerment under Wyo. Stat. Ann. § 6-4-405 (a)Giii) (LexisNexis 2009), for permitting GL to be present in her home at the time methamphetamine was being stored.”
Gilson v. Sirmons, 520 F.3d 1196 (10th Cir. 2008). · cites it 2× “508 (defining the crime of "Abuse, neglect or endangerment of child" to include both "wilfully caus[ing]" and "permit[ting] or allow[ing]"); Va.Code. Ann. § 40.1-103 (defining the crime of "Cruelty and injuries to children" to include "willfully .”
Brumme v. State, 428 P.3d 436 (Wyo. 2018). · cites it 2× “Brumme entered into a plea agreement and pled guilty to two felonies: endangering children (controlled substance), a violation of Wyo. Stat. Ann. § 6-4-405 (b) and (c) (Lexis Nexis 2017), and possession of a controlled substance, a violation of Wyo.”
Crackenberger v. State, 2006 WY 162 (Wyo. 2006). · cites it 4× “§ 35-7-1031 (0)@) (LexisNexis 2005) 1 and, because a minor child was living in the home at the time, one count of endangering a child, a felony, in violation of Wyo. Stat. Ann. § 6-4-405 (b) (LexisNexis 2005) 2 [¶4] The appellant's daughters provided most of the information that…”
Michael David Lott v. The State of Wyoming, 2022 WY 143 (Wyo. 2022). · cites it 2× “Wyo. Stat. Ann. § 6-4-405 (b) (LexisNexis 2021).”
Melinda Irene Reyes v. The State of Wyoming, 2022 WY 41 (Wyo. 2022). · cites it 2× “Reyes was initially charged with five counts: felony child endangerment under Wyo. Stat. Ann. § 6-4-405 (b); felony possession with intent to deliver methamphetamine under § 35-7-1031(a)(i); felony conspiracy to deliver methamphetamine under § 35-7-1031(a)(i) and § 35-7-1042;…”
In Re Arc, 2011 WY 119 (Wyo. 2011). · cites it 2× “Wyo. Stat. Ann. § 6-4-405 (LexisNexis 2011) makes it a crime to allow children to remain in a dwelling where methamphetamine is possessed.”
Show all 21 citing cases →
— Wyo. Stat. § 6-4-405(a)(fii) — 1 case
Granzer v. State, 2008 WY 118 (Wyo. 2008). “Granzer was arrested and charged with endangerment of a child, GL, in violation of Wyo. Stat. Ann. § 6-4-405 (a)(iii) (LexisNexis 2007).”
— Wyo. Stat. § 6-4-405(a)(ii) — 2 cases
Baker v. State, 2010 WY 6 (Wyo. 2010). “The district court did not fail to adequately instruct the jury regarding the elements of Wyo. Stat. Ann. § 6-4-405 (a)(i1). [Baker] was not prejudiced by a jury instruction that required the jury to deliberate regarding the conspiracy counts III and IV pursuant to Wyo.”
Granzer v. State, 2008 WY 118 (Wyo. 2008). “Granzer was arrested and charged with endangerment of a child, GL, in violation of Wyo. Stat. Ann. § 6-4-405 (a)(iii) (LexisNexis 2007).”
— Wyo. Stat. § 6-4-405(a)(iii) — 1 case
Granzer v. State, 2008 WY 118 (Wyo. 2008). “Granzer was arrested and charged with endangerment of a child, GL, in violation of Wyo. Stat. Ann. § 6-4-405 (a)(iii) (LexisNexis 2007).”
— Wyo. Stat. § 6-4-405(b) — 2 cases
Butz v. State, 2007 WY 152 (Wyo. 2007). “Butz was arrested and charged with child endangerment, in violation of Wyo. Stat. Ann. § 6-4-405 (b) (LexisNexis 2007), for allowing his daughters to remain in a dwelling where methamphetamine was possessed.”
Sabrina Kaylee Sunshine Stone v. the State of Wyoming, 2026 WY 22 (Wyo. 2026).
— Wyo. Stat. § 6-4-405(c) — 1 case
Baker v. State, 2011 WY 123 (Wyo. 2011). “§ 35-7-1059 (a)(iv); and Counts V and VI, child endangerment, in violation of Wyo. Stat. Ann. § 6-4-405 (a)(ii). On remand, he was sentenced to terms of six to eight years imprisonment on each of the first two counts, with the two sentences to run concurrently.”
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