The cronic alcholism involved in juridical problems, enjoin to adapt the forensic analyses to new scientific purchase in the acquaintance of ethiology and therapy results which induce the alcohol cronic intoxication prognostic and alcohol abuse. The medical prognosis and social elements are important in: the cases of an transagressor with chronic alcoholism concerned in security measure; in the cases of comorbidity chronic alcoholismepilepsy invoke in civil lawsuit; in abate a possibility to vindication a disability, consequence at skull and cerebral trauma in acute and chronic alcoholism conditions. In the forensic literature, the medical and social prognostic takes care about the genetic predisposition, about the opioid system and premorbid personality structure like etiological factors in chronic alcoholism. The neuro-psychological evaluation of the patient has an influence to the social and functional rehabilitation.