This book review summarizes Shane O’Mara’s Why Torture Doesn’t Work: The Neuroscience of Interrogation, which challenges the assumption that coercive interrogation produces reliable intelligence and evidence. Drawing on evidence from neuroscience, psychology, and biomedical research, O’Mara argues that torture and “enhanced interrogation techniques” (e.g., sleep deprivation, waterboarding, stress positions, temperature manipulation, and dietary restriction) impair core neurocognitive functions that required for accurate recall and coherent reporting. The book synthesizes findings on stress hormones and neural systems involved in memory and executive control, emphasizing the vulnerability of hippocampal-prefrontal processes under acute and chronic stress. It also reviews the limits of deception detection, including both behavioral cues and neuro-technologies, and explains why coercion increases compliance without improving informational accuracy, thereby increasing likelihoods of confabulation and false confession. In addition, O’Mara considers the negative psychological and neurological consequences for interrogators and outlines noncoercive alternative interrogation techniques based on rapport, structured interviewing, and environmental conditions that facilitate memory retrieval. Overall, the book argues that the effectiveness of interrogation should be evaluated as an empirically testable question of how coercion shapes memory and executive functions, rather than an intuitive assumption rooted in folk psychology.