UCMJ Article 112 Drunk on Duty vs Article 112a Drug Use: Alcohol Impairment vs Controlled Substance Violations
On this page: 5 sections
Article 112 is not limited to alcohol. Its subsection (b) punishes anyone who, “as a result of indulgence in any alcoholic beverage or any drug, is incapacitated for the proper performance of duty” (10 U.S.C. § 912(b)). Article 112a is a different kind of offense: it punishes the drug conduct itself, using, possessing, manufacturing, distributing, importing, exporting, or introducing a controlled substance, whether or not anyone’s duty performance is affected.
Article 112 asks whether the service member could do the job; Article 112a asks what the service member did with a controlled substance.
Article 112 in brief
Article 112 has three subsections: (a) drunk on duty, (b) incapacitation for duty from drunkenness or drug use, and (c) drunk prisoner (10 U.S.C. § 912). For subsection (b), the Manual for Courts-Martial defines “incapacitated” as “unfit or unable to properly perform duties as a result of previous alcohol consumption or drug use,” and lack of knowledge of the assigned duties is an affirmative defense (MCM, Part IV, ¶ 49.c(2)). The drug in subsection (b) is “any drug,” not only a controlled substance.
Article 112a
Any person subject to this chapter who wrongfully uses, possesses, manufactures, distributes, imports into the customs territory of the United States, exports from the United States, or introduces into an installation, vessel, vehicle, or aircraft used by or under the control of the armed forces a substance described in subsection (b) shall be punished as a court-martial may direct.
Source: 10 U.S.C. § 912a(a) (Article 112a).
The substances. Subsection (b) names opium, heroin, cocaine, amphetamine, lysergic acid diethylamide, methamphetamine, phencyclidine, barbituric acid, and marijuana, and any compound or derivative of them, plus substances on a presidential schedule and those in Schedules I through V of the Controlled Substances Act. Marijuana’s coverage under Article 112a rests on that statutory naming.
The acts. The Manual defines each one (¶ 50.c):
- Use is to “inject, ingest, inhale, or otherwise introduce into the human body.” Knowledge of the substance’s presence is required, and it “may be inferred from the presence of the controlled substance in the accused’s body”; the Manual calls this a permissive inference that “may be legally sufficient.”
- Possess means exercising control, directly or constructively, and possession “must be knowing and conscious.” Several people can possess the same item.
- Distribute means delivering to another’s possession; manufacture includes growing, processing, and packaging.
- Import and export are tied to the customs territory of the United States, meaning the States, the District of Columbia, and Puerto Rico.
Wrongfulness. Drug conduct “may be inferred to be wrongful in the absence of evidence to the contrary.” Use is wrongful if it is without legal justification or authorization, and the Manual’s list of acts that are not wrongful names possession, distribution, introduction, and manufacture done in legitimate law enforcement activities, by authorized personnel performing medical duties, or without knowledge of the substance’s contraband nature. The person claiming an exception must raise it; if the evidence raises it, the government must prove wrongfulness (¶ 50.c(5)).
Deliberate ignorance. A person who consciously avoids knowing about a controlled substance faces the same liability as one who knows (¶ 50.c(11)).
The statute’s list of acts does not include drug paraphernalia; whether another article or a regulation reaches paraphernalia is a question outside Article 112a.
How the facts sort
| Article 112(b) | Article 112a | |
|---|---|---|
| What is punished | Being unfit or unable to perform duty | Using, possessing, manufacturing, distributing, importing, exporting, or introducing |
| Substance | Alcohol or "any drug" | A controlled substance listed in or under subsection (b) |
| Duty required | Yes, assigned duties | No |
| Lawful medication | Can still cause incapacitation | Authorized, lawful use is not wrongful |
For example, a service member who takes a lawfully prescribed sedative, then reports for a shift unable to function, is not wrongfully using a controlled substance under Article 112a, but the incapacitation can still raise Article 112(b). Smoking marijuana on a Saturday, reporting fit for duty on Monday, and then testing positive is the reverse case: Article 112(b) does not apply because duty performance was not affected, while the use raises Article 112a. Whether a prescription covered the use, and whether a condition amounted to incapacitation, turn on the prescription’s terms and on how the accused performed, or failed to perform, the assigned duties.
Maximum punishments
| Offense | Maximum (MCM, Part IV, ¶ 49.d and ¶ 50.d) |
|---|---|
| Incapacitation for duty from drunkenness or drug use | Confinement for 3 months and forfeiture of two-thirds pay per month for 3 months |
| Drunk on duty | Bad-conduct discharge, forfeiture of all pay and allowances, 9 months |
| Use, possession, manufacture, or introduction of amphetamine, cocaine, heroin, LSD, methamphetamine, opium, PCP, secobarbital, Schedule I-III substances, or marijuana (other than use, or possession of under 30 grams) | Dishonorable discharge, forfeiture of all pay and allowances, 5 years |
| Use of marijuana, possession of under 30 grams of marijuana, or offenses involving phenobarbital or Schedule IV-V substances | Dishonorable discharge, forfeiture of all pay and allowances, 2 years |
| Distribution, importation, exportation, or possession, manufacture, or introduction with intent to distribute, of the first group, including marijuana in any amount | Dishonorable discharge, forfeiture of all pay and allowances, 15 years |
| The same acts involving phenobarbital or Schedule IV-V substances | Dishonorable discharge, forfeiture of all pay and allowances, 10 years |
For Article 112a, the maximum confinement increases by 5 years when the offense is committed on duty as a sentinel or lookout, aboard a military vessel or aircraft, at a missile launch facility, while receiving special pay under 37 U.S.C. § 310, in time of war, or in a military confinement facility (¶ 50.d). Where every finding of guilty is for an offense committed after December 27, 2023, the military judge determines the sentence in a general or special court-martial, other than in a capital case (10 U.S.C. § 853(b)(1)).
Sources
- 10 U.S.C. § 912, drunkenness and other incapacitation offenses (Article 112)
- 10 U.S.C. § 912a, wrongful use, possession, etc., of controlled substances (Article 112a)
- 10 U.S.C. § 853, findings and sentencing (Article 53)
- Manual for Courts-Martial, United States (2024 edition), Part IV, ¶ 49 and ¶ 50.
Legal information about Articles 112 and 112a; it does not assess any test result, prescription, or duty status. This page reflects the UCMJ as amended through Public Law 119-60 (December 18, 2025) and the Manual for Courts-Martial (2024 edition) as amended by Executive Order 14130.