The severe disturbance of conscience caused by alcoholic beverages is ruled by Articles 19 and 20 if their consumption was accidental or fortuitous. Article 21 applies if their consumption was intentional or careless, or to facilitate the commission of the act or to create an excuse.
Punishment will not be attenuated simply because the person in question was only partially able, at the time of the act or omission, to understand the unlawfulness of the act or to conduct himself in accordance with said understanding, if the disturbance of conscience was caused by the intentional or careless consumption of alcoholic beverages, or in order to facilitate the commission of the act or to devise an excuse.
This Article and the three preceding ones will apply when the
severe disturbance of conscience resulted from the use of narcotic,
hallucinatory or other similar substances.