Definitions for mug book
This page provides all possible meanings and translations of the word mug book
mug file, mug book(noun)
a file of mug shots (pictures of criminals that are kept on file by the police)
A book containing mug shots, pictures of faces.
A mug book is a collection of photographs of criminals, typically in mug shots taken at the time of an arrest. A mug book is used by an eyewitness to a crime, with the assistance of law enforcement, in an effort to identify the perpetrator. Research has shown that grouped photos result in less false-positives than individually displaying each photo. Mug book also has a meaning in genealogy and history, referring to local biographical histories published in the US in the late 19th century.
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