Questioned Documents Unit - official website of THE LOS ANGELES POLICE DEPARTMENT

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The LAPDonline.org® website has made reasonable efforts to provide an accurate translation. However, no automated or computerized translation is perfect and is not intended to replace human or traditional translation methods. The official text is the English version of the LAPDonline.org® website. If any questions arise concerning the accuracy of the information presented by the translated version of the website, please refer to the English edition of the website, which is the official version.

Questioned Documents Unit

Responsible for examining documents to determine the facts surrounding them, their preparation, and their subsequent treatment. The examination can include: comparison of handwriting or hand-printing; detection of alterations; photocopier and computer manipulation; restoration or decipherment of erased and obliterated writing; visualization of latent impressions; the identification of printing processes; reassembly of shredded documents; the dating of documents and differentiation of inks.