Liberating Discretion: The Effect of Rape Myth Factors on Prosecutors’ Decisions to Charge Suspects in Penetrative and Non-Penetrative Sex Offenses

In sexual assault cases, prosecutorial charging decisions may be influenced by legal factors like offense seriousness and convictability and extralegal rape myths. We use data on sexual assaults in Los Angeles, to test for the effects of victim behavior, victim credibility, and “real rape” stereotypes on the decision to file charges. We also test the liberation hypothesis, examining whether rape myths influence the charge decision more in less serious nonpenetrative cases then in penetrative cases. Results show that victim credibility and behavior, but not consistency with real rape stereotypes, affect charging decisions, even after controlling for legally relevant factors, and they influence prosecutors’ charging decisions equally in penetrative and nonpenetrative cases. Rape myths also influence the charging decision indirectly via victim cooperation. We conclude that rape myths are incorporated into the criminal justice system’s definition of and response to sexual violence, so cannot be addressed by changing case screening policies.