Persons becoming delinquent on account of alcoholism can be divided into three groups (part. according to Glatt) every one necessitating a different corrective treatment: 1) Consumers of alcohol committing delinquency in traffic. They first should be put under a particular regime in special prison for traffic delinquents and then transferred to an antialcoholic advisory board. 2) Chronic alcoholics (3rd and 4th phase according to Jellinek). They usually become criminal in their mean and older years of age. They are suitable for stationary treatment in medical institutions following immediately the accomplishment of their sentence and it is advisable to perform certain forms of therapy since the beginning of the accomplishment of their sentence in the prison itself. 3) Dissocial, impulsive and aggressive psychopaths who generally are difficult to manage since their childhood. Alcohol is rather a secondary, facilitating factor of their criminality that uses to be manifested for the first time in young age already. They require quite special corrective-therapeutical measures that connect the character of prison with that of a psychiatric hospital. Their stay must not be limited in beforehand and special regulations as to their way of penalty must taken in consideration by the penal code (in our country it is § 72 of the Penal code, the so-called protective treatment). An expedite foundation of at least the first experimental protective institute for the third group would also be of great importance for the general prevention of delinquency in these individuals who in ordinary prisons frequently become criminal recidivists.