FCCJA DCJS Practice Exam 2026 – Comprehensive Test Prep

Approaching this, the important point is that pressuring or encouraging a rape victim to take a polygraph is not appropriate. Polygraph tests do not provide a reliable measure of truth; they gauge physiological responses, which can be influenced by fear, trauma, pain, medications, or the stress of recounting the assault. This makes results susceptible to false positives or inconclusive outcomes, and in many places those results are not admissible in court or used to determine credibility. Requiring or urging a victim to undergo a polygraph can retraumatize the person, undermine trust, and shift the investigation away from careful, trauma-informed interviewing toward an unreliable test. The right approach is to conduct sensitive interviews, prioritize the victim’s autonomy and well-being, and rely on corroborating evidence and standard investigative methods rather than polygraph results. Therefore, the best answer is to refrain from encouraging a rape victim to take a polygraph. If you’re weighing other options, they imply some role for the test, which conflicts with the ethical and evidentiary reasons above, as well as common professional practice that emphasizes the victim’s safety and the reliability concerns surrounding polygraphs.