This thesis presents a descriptive analysis of the police arrest records for Muncie, Indiana, to determine if there was a decrease in the sex ratio of adults arrested for non-traffic violations from 1967-1970. The Muncie police arrest records were compared to the national arrest statistics as published in the Uniform Crime Report. The problems associated with absolute figures on the number r of arrests were avoided by considering the total population of Muncie and the nation. The results of the study showed that on the whole, Muncie followed the general national trend of a decreasing sex ratio of arrests. Although the general national trend was towards a decreasing sex ratio of arrests, there were a few years namely 1962, 1965, and 1966 in which the sex ratio of national arrests increased slightly. Further, Muncie's trend of a decreasing sex ratio of arrests was interruped in 1970 by a slight increase.