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Digital Evidence

The OSBI Digital Evidence Unit (DEU) is a section of the OSBI Criminalistics Division housed in the AT&T Digital Evidence Forensic Laboratory in Edmond, Oklahoma. The DEU specializes in the preservation, acquisition, processing, and analysis of evidence in a digital format. Digital evidence seized at crime scenes may contain vital evidence. Digital forensic analysis provides law enforcement agencies with the recovery and analysis of digital evidence, especially in crimes involving children.

The Digital Evidence Unit works closely with the Internet Crimes Against Children Unit (ICAC). Crimes against children such as sexual exploitation of a child, indecent liberties, statutory rape, and child pornography, account for the majority of digital evidence submissions. Other cases involve homicides, rape, conspiracy to commit murder, financial crimes, computer crimes, fraud, identity theft, property crimes, and drug offenses.

Digital Evidence Services Provided

Computer Forensic Analysis on:

  • Desktop Computers
  • Laptop Computers
  • Hard Drives
  • USB Flash Drives
  • USB External Hard Drives
  • Memory Cards (as a standalone piece of loose media)

Types of data analyzed:

  • File type sorting and searching
    • Documents
    • Emails
    • Photographs
    • Videos
  • Internet History/Chats
  • Registry Entries
  • Data Recovery
  • Usage History
  • Keyword/number pattern searches

Data extraction on:

  • Cellular Telephones
  • Tablets
  • SIM Cards
  • Memory Cards (as a component of the cellular telephone or digital storage device)

Types of data extracted:

  • Contacts
  • Emails
  • Call Logs
  • SMS/MMS Messages
  • Pictures
  • Videos
  • Calendar Entries
  • Ringtones
  • Audio Files
  • Locations


Forensic Science Center
AT&T Digital Forensic Laboratory
OSBI Digital Evidence Unit (DEU)

800 East 2nd Street
Edmond, OK  73034

Digital Evidence Unit Supervisor
Rachel Ross
Phone: 405-974-6955
Fax: 405-330-6207