Chana Stiefel 
Fingerprints [PDF ebook] 
Dead People DO Tell Tales

No two people in the world, not even identical twins, have the same fingerprints. For this reason, detectives and forensic scientists have been using fingerprint evidence to catch criminals for more than a hundred years. Readers find out the techniques scientists use to collect fingerprints and to identify criminals with these fascinating stories about how fingerprints helped solve crimes.