Data representing 990 incidents were collected from the Milwaukee County Circuit Court on 1187 persons charged with the commission of a robbery or burglary offense during 1976 and 1977. Accepting the premise that spatial structure has an impact on the movement of individual in space, this analysis investigates the movement of black and white offenders from ghetto and nonghetto spaces of Milwaukee County. It reveals that the single-core structure of the Milwaukee ghetto serves to restrict as well as to deflect the movements of most offenders, but black robbers are able to overcome the effect of the ghetto with relative ease when compared to other offenders. (Author abstract)