This experiment examines how a police interviewer’s judgment error and apology affect a sexual violence victim’s secondary victimization, trust in the interviewer, rapport, and willingness to provide information. Ninety students from Peru were asked to imagine being sexual violence victims and were interviewed online by a mock police interviewer. Participants were randomized into three conditions: judgment error without apology, judgment error with apology, and a no-error control. The judgment error involved suggesting the victim was partly responsible for their victimhood, citing women’s clothing choices and questioning men’s masculinity. Our findings show judgment errors reduced trust, rapport, and willingness to provide information while increasing secondary victimization; apologizing improved trust and rapport but did not affect secondary victimization or willingness to provide information. These outcomes indicate that judgment errors in sexual violence victim interviews can negatively impact the interviewing process and outcomes and highlight the importance of an apology.