Fingerprint matching is a vital investigative tool. But despite its legendary aura of infallibility, courtroom claims of fingerprints’ uniqueness are slowly receding.
Amateurs and experts alike overestimate their ability to divine truth and deception. But when criminal investigators do it, it can be very bad news for the accused.
Experts find recurring themes in wrongful convictions. And while some jurisdictions are now creating in-house review units to ensure convictions are righteous, commonly repeated mistakes continue to mar cases.
John Watkins' stash of pornography made him a look like a prime suspect for a rape in police and prosecutors' eyes. How they wrung a confession out of him and convinced a shaky witness to ID him offers textbook examples of how to achieve a wrongful conviction.