Finished ahead of schedule and within budget, the Mass Transit Railway (MTR) is clean, safe, and virtually crime-free. This study, based on 5 months of fieldwork, describes the development of the MTR and how it has kept crime to a minimum. The system's low crime rate is attributed to 3 factors: (1) the nature of Hong Kong society with its overall low crime rate; (2) the efforts of the MTR District Police to ensure a rapid response to calls for assistance; and (3) the well-conceived design of the MTR's stations and trains which discourages criminal behavior. 2 tables, 9 notes, and 33 references (Author abstract modified)