# The Subjective Side: Intent and Mistake

Law I · Foundations of Criminal Law and the Theory of the Offence · https://tryals.app/learn/law-i/the-subjective-side-intent-and-mistake

## Dolo

**Dolo** requires both knowledge and will. The agent knows the elements of the offence and carries them out. Under Spanish finalist doctrine, it sits in the **subjective side of the type** rather than culpability.

There are three degrees:

| Class | Cognitive element | Volitional element |
|---|---|---|
| **Direct, first degree** | Foresees the result | The result is the goal |
| **Direct, second degree** | Knows the result will necessarily follow | Accepted as an inevitable side effect |
| **Eventual** | Knows the result is a serious possibility | Contested |

### Border with conscious negligence

**Dolo eventual** and **conscious negligence** share the same cognitive element. In both, the agent foresees the result as possible. Two main approaches distinguish them:

- **Volitional theories** ask whether the agent accepted or consented to the result.
- **Cognitive theories** focus purely on the gravity of the foreseen risk.

### Mistake

Article 14 CP regulates mistake across **three** paragraphs:

- **14.1, mistake about a fact constituting the offence** (*error de tipo*). Invincible mistake excludes liability. Vincible mistake is punished **as negligent** if a negligent modality exists.
- **14.2, mistake about a fact that qualifies the offence or constitutes an aggravating circumstance**. The aggravating element does not apply.
- **14.3, mistake about the unlawfulness of the act** (*error de prohibición*). Invincible mistake excludes responsibility. Vincible mistake lowers the penalty by one or two degrees.

Note Article 14.1 and Article 14.3 differ fundamentally in structure.

### Special Cases

- An **error about the identity of the victim** leaves liability intact when both victims share equal legal protection.
- **Aberratio ictus** occurs when a blow goes astray. Most authors treat it as an attempt combined with negligence.
- A specific **subjective element of the unjust**, such as intent to gain, is occasionally required by the definition of the offence.

> **Common pitfall:** A vincible mistake of type does not reduce intentional penalties. It shifts liability entirely to negligence. Lowering the penalty by degrees applies only to a mistake of **prohibition** under Article 14.

## Practice questions

8 of this lesson's 14 practice questions, with answers. The full set is in the app.

### 1. Why does a mistake about a fact belonging to the type destroy the intentional offence, while a mistake about the prohibition leaves the offence standing with a reduced penalty?

A. Type mistakes remove the volitional element; prohibition mistakes merely reduce culpability
B. Fact mistakes act as justifications, whilst prohibition mistakes serve as sentencing bars
C. Type intent is negated by factual mistake, but prohibition mistakes merely lessen reproach
D. Type mistakes negate objective wrongfulness, whereas prohibition mistakes excuse the person

**Answer:** C. Type intent is negated by factual mistake, but prohibition mistakes merely lessen reproach

**Why:** Because the two mistakes attack **different stages**. A mistake of type means the person did not know a fact that makes the conduct fit the offence, so intent, which sits in the type, is gone and only negligence remains. A mistake of prohibition leaves intent untouched and diminishes the reproach at the culpability stage instead.

Page: https://tryals.app/practice/law-i/the-subjective-side-intent-and-mistake/why-does-a-mistake-about-a-fact-belonging-to-the-type-destroy-the

### 2. Which are true of a mistake about a fact constituting the offence under Article 14.1?

A. If the mistake was vincible, the act is punished as negligent where a negligent form exists
B. A vincible mistake reduces the penalty for the intentional offence by one or two degrees
C. A vincible mistake produces an acquittal where the offence has no negligent form
D. If the mistake was invincible, criminal responsibility is excluded

**Answer:** A. If the mistake was vincible, the act is punished as negligent where a negligent form exists; C. A vincible mistake produces an acquittal where the offence has no negligent form; D. If the mistake was invincible, criminal responsibility is excluded

**Why:** The fourth is the commonest error in this area. Article 14.1 does not reduce the intentional offence; it converts the case into a negligence case, and Article 12 then punishes negligence only where the Code expressly provides. Where no negligent form exists, a vincible mistake of type produces an acquittal on that charge and not a discount.

Page: https://tryals.app/practice/law-i/the-subjective-side-intent-and-mistake/which-are-true-of-a-mistake-about-a-fact-constituting-the-offence

### 3. Complete the vocabulary of the subjective side.

**Answer:** Intent whose cognitive element is knowledge that the result will necessarily follow, though it is not desired, is direct intent of the **second** degree. Intent in which the person foresees the result as a serious possibility is **eventual** intent. A mistake about a fact constituting the offence is an error of **type**. A purpose written into the offence beyond intent, such as an intent to gain in theft, is a subjective element of the **unjust**.

**Why:** The bank deliberately holds both kinds of error. **Error of type** attacks knowledge of the facts and therefore intent; **error of prohibition** attacks knowledge of the law and therefore the reproach. Choosing the wrong one at this point produces the wrong answer at every later stage of the analysis.

Page: https://tryals.app/practice/law-i/the-subjective-side-intent-and-mistake/complete-the-vocabulary-of-the-subjective-side

### 4. How many paragraphs does Article 14 of the Criminal Code contain?

**Answer:** 3

**Why:** **Three**: a mistake about a fact constituting the offence, a mistake about a qualifying fact or an aggravating circumstance, and a mistake about the unlawfulness of the act. The middle paragraph is the one students forget, and it does the quiet work of stopping an aggravation being applied to someone who did not know the fact that grounds it.

Page: https://tryals.app/practice/law-i/the-subjective-side-intent-and-mistake/how-many-paragraphs-does-article-14-of-the-criminal-code-contain

### 5. Arrange these theories of the boundary of eventual intent from the most purely cognitive to the most demanding on the will.

**Answer:**

1. It is enough that the person represented the result as a serious probability
2. It is enough that the person took the risk seriously and acted regardless
3. The person must have remained indifferent to whether the result occurred
4. The person must have accepted the result, in the sense that they would have acted even knowing it would follow

**Why:** The gradient shows why the dispute persists. Each step towards the will makes the concept more faithful to the intuition that intending is more than foreseeing, and harder to prove, until the last position asks a counterfactual that no evidence can settle directly and that courts end up inferring from the conduct itself.

Page: https://tryals.app/practice/law-i/the-subjective-side-intent-and-mistake/arrange-these-theories-of-the-boundary-of-eventual-intent-from-the

### 6. Sort each element by where it sits in the structure of the offence.

**Answer:**

- Objective side of the type: Conduct-result link, Conduct and result
- Subjective side of the type: Knowledge of facts, Intent to gain (if any)
- Culpability: Capacity to judge wrong, Knowledge of the ban

**Why:** The pair to compare is knowledge of the **facts** and knowledge of the **law**. They look like the same kind of mental state and they live on different floors: the first is part of the type, so its absence destroys the offence in its intentional form, and the second is part of culpability, so its absence reduces the reproach.

Page: https://tryals.app/practice/law-i/the-subjective-side-intent-and-mistake/sort-each-element-by-where-it-sits-in-the-structure-of-the-offence

### 7. Spanish finalist doctrine places intent within the subjective side of the type rather than culpability. What follows from this systematic relocation for how mistake of type operates?

A. It prevents any subjective analysis within the stage of culpability.
B. It excludes the intentional type entirely because knowledge is missing.
C. It lowers the penalty for the intentional offence by one or two degrees.
D. It shifts the evaluation of the actor's awareness exclusively to intent.

**Answer:** B. It excludes the intentional type entirely because knowledge is missing.

**Why:** Because intent belongs to the statutory type, missing factual knowledge negates the intentional offence itself rather than merely mitigating culpability. Downward degree adjustments belong strictly to prohibition mistakes.

Page: https://tryals.app/practice/law-i/the-subjective-side-intent-and-mistake/spanish-finalist-doctrine-places-intent-within-the-subjective-side-of

### 8. Under Article 142.1 of the Criminal Code, what is the maximum term of imprisonment, in years, for causing death by gross negligence?

**Answer:** 4 (within ±0.5)

**Why:** **Four years**, against a range of ten to fifteen for intentional homicide. Hold the two ranges side by side and the stakes of the *dolo eventual* boundary become concrete: the same death, the same causal contribution, and a difference in maximum penalty of more than a decade turning on how the driver's attitude to the risk is characterised.

Page: https://tryals.app/practice/law-i/the-subjective-side-intent-and-mistake/under-article-142-1-of-the-criminal-code-what-is-the-maximum-term-of