I am a law school graduate. What I offer is mere information, not to be construed as forming an attorney client relationship.
Can you be a bit more specific?
As far generally speaking, in criminal cases, intoxication is a defense used to show specific intent could not be formed. i.e lack of capacity to form specific intent to commit first degree murder (pre meditated).
Maybe if we knew exactly the area you are questioning, then perhaps we can help.