Halachah differentiates between someone who is shatui (slightly intoxicated), shikur (very intoxicated) and shikruto shel Lot—an individual so completely drunk, they have lost control of what they are doing. A shikar of any level, even that achieved by Lot, is considered a rational person for all matters, and the Torah’s penalties for transgressing its laws will apply in his case. In this regard, he is treated as if he had willfully intended to perform whichever actions he takes. Even on Purim, someone who inflicts damage or injury while intoxicated is fully liable. (Even to damage caused by rejoicing of Purim, as is customary in some places, and not simply to sheer drunkenness.)
Rav Yosef Yeshaya Braun, shlita, member of the Bet Din of Crown Heights; reprinted from Day-To-Day Halachic Guide
