The implementation of new transit lines is sometimes dogged by concerns that such lines may increase crime rates in station neighborhoods. Afflue nt communities have often complained that transit lines transport crime to the suburbs. This study focuses on the Green Line transit system in Los Angeles and examines its effects on crime in the adjacent areas. The Green Line light rail system passes through some high-crime, inner-city neighborhoods and terminates at its western end in affluent suburban communities. The study examines neighborhood level and municipality- wide crime trends for five years before and five years after th e inception of the line. A piecewise regression model is developed to evaluate the impact of the opening of the line in the station neighborhoods. Geographic Information System (GIS) analysis is also utilized to identify spatial shifts in crime hot spots for the municipalities abutting the Green Line. The study finds little evidence that the transi t line has had significant impacts on crime trends or crime dislocation in the station nei ghborhoods, nor has the line transported crime from the inner city to the suburbs.