THESE MODELS ARE EXAMINED IN THE CONTEXT OF THEIR CONSIDERATION AS A BASIS FOR CRIMINAL JUSTICE POLICY IN SWITZERLAND. IN THE MEDICAL-PSYCHIATRIC MODEL THE CONCEPT OF DISEASE BORROWED FROM GENERAL MEDICINE IS APPLIED. ACCORDING TO THIS IT IS ASSUMED THAT DELINQUENTS ARE ABNORMAL INDIVIDUALS WHO NEED TREATMENT. THE PSYCHOLOGICAL TARIFF TENDS TO LOOK AT CHARACTERISTICS AND INDIVIDUAL POSITIVE ASSETS OF THE PERSONALITY STRUCTURE THAT CAN BE AN OBSTACLE FOR THE MANIFESTATION OF DELINQUENCY. ADAPTATION TO SOCIETY MAY BE OBTAINED BY USING TECHNIQUES OF BEHAVIOUR-THERAPY. THE SOCIOLOGICAL MODEL EMPHASIZES THE EFFECTS OF PRISONISATION AND STIGMATISATION BY INSTITUTIONAL DETENTION OF A MALADJUSTED PERSON. DELINQUENCY AND THE CRIMINAL PROCESS ARE RESULTS OF LABELLING BY THE SOCIAL CLASS AND ENVIRONMENT. THE MODEL OF JUSTICE IS LAW-ORIENTATED. THE DELINQUENTS SHOULD RECEIVE PENAL SANCTIONS PROPORTIONATE TO THE SERIOUSNESS OF THEIR OFFENCE. THERE IS NO EMPIRICAL EVIDENCE THAT TREATMENT REALLY DOES COUNTERACT RECIDIVISM. A JUDICIAL TARIF SYSTEM WITHOUT INDETERMINATE SENTENCES SHOULD BE ESTABLISHED. IN THE MODEL OF EDUCATION DELINQUENCY IS PERCEIVED AS LACK OF INFORMATION IN GENERAL. THE SOCIAL VULNERABILITY MIGHT BE COUNTERACTED BY EDUCATIONAL CHANGES. (AUTHOR ABSTRACT) --IN GERMAN. SUMMARIES IN ENGLISH, FRENCH, AND GERMAN