THE SITUATION IS ILLUSTRATED WITH CASE STUDIES FROM THE SECURITY WING OF A PROVINCIAL MENTAL HOSPITAL IN BRITISH COLUMBIA. AN OVERVIEW IS GIVEN OF THE USE OF PREVENTIVE DETENTION FOR PERSONS CONSIDERED 'SOCIAL NUISANCES' AND THE USE AND ABUSE OF THE INDETERMINATE SENTENCE. THE THERAPEUTIC MODEL OF TREATMENT FOR CRIMINAL OFFENDERS IS CONTRASTED WITH THE CRIMINAL MODEL. ALTHOUGH THE THERAPEUTIC MODEL SEEMS MORE HUMANE ON THE SURFACE, ACCORDING TO THIS ANALYSIS, IT HOLDS HIDDEN DANGERS, THE GREATEST OF WHICH IS DENIAL OF CIVIL LIBERTIES. INTERVIEWS WITH 'PATIENTS' COMMITTED TO THE HOSPITAL ARE SUMMARIZED. THE INTERVIEWS UNDERSCORE THE FAILURE OF THE PSYCHIATRIC FACILITY TO EITHER TREAT THE PATIENTS OR RETURN THEM TO SOCIETY. BECAUSE THE STANDARDS FOR RELEASE ARE SO VAGUE, THE PATIENT CAN BE HELD PRISONER FOR YEARS AND THERE IS LITTLE CHANCE FOR HIM TO EARN ANY FORM OF RELEASE. THE CIVIL COMMITMENT PROCEDURES IN CANADA ARE DETAILED AND THEIR LACK OF REGARD FOR DUE PROCESS IS CRITICIZED. NUMEROUS CASE HISTORIES ARE CITED TO SUPPORT THIS CRITICISM. THE USE OF CIVIL COMMITMENT AND INDETERMINANT PROCEEDINGS FOR THOSE PERSONS JUDGED NOT GUILTY BY REASON OF INSANITY AND FOR PERSONS WHO BECOME MENTALLY ILL WHILE IN PRISON IS ALSO REVIEWED. IT IS CONCLUDED THAT THE ENTIRE COMMITMENT SYSTEM NEEDS REFORM, THAT DUE PROCESS NEEDS TO BE BUILT INTO EACH STEP, THAT THE 'RIGHT TO TREATMENT' ALSO IMPLIES THE 'RIGHT TO BE LET ALONE.' REFERENCES ARE APPENDED. (GLR)