While social scientists have long been interested in the issue of racial and sexual discrimination within the criminal justice system, they have concentrated on the decisions to convict and sentence and have paid relatively little attention to the decision to prosecute. This study examines the issue of pretrial discrimination by focusing on the prosecutor's decision to reject or dismiss charges against black, Anglo, and Hispanic male and female defendants in Los Angeles. The data reveal a pattern of discrimination in favor of female defendants and against black and Hispanic defendants. Hispanic males are most likely to be prosecuted fully, followed by black males, Anglo males, and females of all ethnic groups.