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Tremors in the Blood: Murder, Obsession, and the Birth of the Lie Detector

BEWARE WHAT YOU BELIEVE: This “rollicking true crime” story reveals the surprising origins of the lie detector through shocking murders and dramatic trials (WIRED).
“Everything a reader wants in a true crime book—murder, mystery, gunfights, courtroom theatrics and dogged police work.” —Deborah Blum, bestselling author of The Poisoner's Handbook
Late one evening in the summer of 1922, Henry Wilkens burst through the doors of the emergency room covered in his wife’s blood. But was he a grieving husband, or a ruthless killer who conspired with bandits to have her murdered?
To find out, the San Francisco police turned to technology and a new machine that had just been invented in Berkeley by a rookie detective, a visionary police chief, and a teenage magician with a showman’s touch.
John Larson, Gus Vollmer and Leonarde Keeler hoped the lie detector would make the justice system fairer – but the flawed device soon grew too powerful for them to control. It poisoned their lives, turned fast friends into bitter enemies, and as it conquered America and the world, it transformed our relationship with the truth in ways that are still being felt.
As new forms of lie detection gain momentum in the present day, Tremors in the Blood reveals the incredible truth behind the creation of the polygraph, through gripping true crime cases featuring explosive gunfights, shocking twists and high-stakes courtroom drama.
Touching on psychology, technology and the science of the truth, Tremors in the Blood is a vibrant, atmospheric thriller, and a warning from history: beware what you believe.
“Everything a reader wants in a true crime book—murder, mystery, gunfights, courtroom theatrics and dogged police work.” —Deborah Blum, bestselling author of The Poisoner's Handbook
Late one evening in the summer of 1922, Henry Wilkens burst through the doors of the emergency room covered in his wife’s blood. But was he a grieving husband, or a ruthless killer who conspired with bandits to have her murdered?
To find out, the San Francisco police turned to technology and a new machine that had just been invented in Berkeley by a rookie detective, a visionary police chief, and a teenage magician with a showman’s touch.
John Larson, Gus Vollmer and Leonarde Keeler hoped the lie detector would make the justice system fairer – but the flawed device soon grew too powerful for them to control. It poisoned their lives, turned fast friends into bitter enemies, and as it conquered America and the world, it transformed our relationship with the truth in ways that are still being felt.
As new forms of lie detection gain momentum in the present day, Tremors in the Blood reveals the incredible truth behind the creation of the polygraph, through gripping true crime cases featuring explosive gunfights, shocking twists and high-stakes courtroom drama.
Touching on psychology, technology and the science of the truth, Tremors in the Blood is a vibrant, atmospheric thriller, and a warning from history: beware what you believe.
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Community Reviews
Listened to it while reading; not sure if it was the narrator or the book itself but it was quite slow and hard to follow. Wish that it was more about the machine itself than stories around it.
The book is more about the crimes, rather than the detector machine itself.
The writer needed a good editor as each chapter jumped all over the place and it was rather difficult to follow.
I really enjoyed this book! Such an interesting look at the justice system and media in addition to the evolution of the lie detector. Some minor editing/writing complaints, but overall an engaging read.
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