Subjects included all the remand cases for psychiatric reports admitted within a 2-year period (April 1978-March 1980) to the reception center of the Prison Department in Hong Kong, where male remand cases from all the courts are referred for study. Of the 607 men referred during the study period, 142 were offenders charged with sex offenses. They ranged in age from 19 to 85 years, averaging 34.97 years; 65 percent were not diagnosed for any formal psychiatric disorder. While schizophrenia was diagnosed for 23.94 percent of the sample, this group committed 26.6 percent of the indecent assaults on women and 40.74 percent of the indecent exposure cases. Indecent assault on females and males and exhibitionism were the most common offenses in the group without mental disorder. Details of the Hong Kong findings are compared with results of Western European studies. Tabular data and 35 references are given.