Intoxication as a Defence in Nigerian Criminal Law
Alcohol and crime often go together. Many violent crimes happen when people are drunk. The law faces a problem: how do we balance punishing dangerous behavior with the requirement of mens rea (guilty mind)? If someone is too drunk to know what they’re doing, do they have criminal intent?
Nigerian law, under Section 29 of the Criminal Code (and Section 52 of the Penal Code), generally says yes—unless narrow exceptions apply.
The Basic Rule
Section 29(1) is harsh: intoxication is not a defence to any criminal charge.[^1] If you voluntarily get drunk, you accept the consequences. But Section 29(2) allows two exceptions: involuntary intoxication and intoxication causing insanity. Section 29(4) also lets intoxication negate specific intent.
Involuntary Intoxication
This is a complete defense if you didn’t know what you were doing or that it was wrong, and the intoxication wasn’t your fault—someone else caused it through malice or negligence.
When it applies:
- Prescribed drugs: Taking medication as your doctor ordered isn’t reckless.
- Spiked drinks: Not knowing your drink contains alcohol or drugs.
- Sedatives (R v Hardie): The accused took Valium to calm down, then started a fire. The court said this was involuntary intoxication because Valium is a sedative, not a dangerous drug that causes aggression. He wasn’t reckless in taking it.[^2]
Voluntary Intoxication and Insanity
For voluntary intoxication to be a defense under Section 29(2)(b), it must cause insanity as defined in Section 28.
The threshold: Being drunk isn’t enough. You must prove you were so intoxicated that you had a temporary psychotic break or delirium tremens, destroying your capacity to understand or control yourself. If proven, you’re treated as insane under Sections 229 and 230 of the Criminal Procedure Act.
Note: Under Section 44 of the Penal Code, voluntary intoxication is never a defense. You’re presumed to have the same knowledge as a sober person.
The Specific Intent Rule
Section 29(4) is the most useful part. It says courts must consider whether the accused, while intoxicated, could form the “specific intention” the crime requires. Courts divide crimes into two types:
Specific Intent Crimes
These require a specific purpose beyond the act itself. Murder requires intent to kill. Stealing requires intent to permanently deprive.
How it works: If you were too drunk to form this intent, the charge may fail or be reduced. A murder charge might become manslaughter if drunkenness prevented you from forming the intent to kill.
Basic Intent Crimes
These only require recklessness. Manslaughter, assault, and rape are basic intent crimes.
DPP v Majewski: The accused attacked a police officer after drinking for 24 hours. He claimed he had no mens rea. The House of Lords said voluntary intoxication is no defense to basic intent crimes. Getting drunk recklessly supplies the necessary mens rea.[^3]
The “Dutch Courage” Rule
The law blocks a loophole for people who drink to build courage.
Attorney-General of Northern Ireland v Gallagher: The accused decided to kill his wife. He bought whiskey to give himself courage. After drinking, he killed her. He claimed he was too drunk to form intent at the time. The court rejected this.[^4]
Why: If you form intent while sober, then get drunk to carry it out, the drunkenness doesn’t erase the intent. The intent you formed sober carries through to the drunk act.
Conclusion
Intoxication offers limited protection. For involuntary victims (spiked drinks), it’s a complete defense. For voluntary drinkers charged with murder, it might reduce the charge to manslaughter if it negates specific intent. But for “Dutch courage” killers or reckless attackers (basic intent crimes), Section 29 offers no help. The law says: if you voluntarily lose control, you still answer for what you do.
[^1]: Criminal Code Act, Cap C38, Laws of the Federation of Nigeria 2004, s 29(1).
[^2]: R v Hardie [1985] 1 WLR 64.
[^3]: DPP v Majewski [1977] AC 443.
[^4]: Attorney-General for Northern Ireland v Gallagher [1963] AC 349.
