ELECTRONIC CRIME SCENE INVESTIGATION, SECOND EDITION
found in the trunks of patrol cars are examples of devices that
produce electromagnetic fields.
Electronic Device: A device that operates on principles
governing the behavior of electrons. Examples of electronic
devices include computer systems, scanners, and printers.
Electronic Evidence: Information or data of investigative
value that is stored on or transmitted by an electronic device.
Electronic Storage Device: Any medium that can be used to
record information electronically. Examples include hard disks,
magnetic tapes, compact discs, videotapes, and audiotapes.
Examples of removable storage devices include thumb drives,
smart media, flash cards, floppy disks, and Zip
®
disks.
Encryption: Any procedure used in cryptography to convert
plain text into cipher text to prevent anyone but the intended
recipient with the corresponding key from reading that data.
EPROM: Erasable programmable read-only memory. A type
of computer memory chip that retains its data when its power
supply is switched off. Once programmed, an EPROM can be
erased only by exposing it to strong ultraviolet light.
Ethernet: The standard local area network (LAN) access
method that connects electronic devices to a network, cable
modem, or DSL modem for Internet access.
Exculpatory Evidence: Evidence that shows that a criminal
charge is not substantiated by the evidence.
Faraday: A dimensionless unit of electric charge quantity,
equal to approximately 6.02 x 10
23
electric charge carriers. This
is equivalent to one mole, also known as Avogadro’s constant.
Faraday isolation bags are used to prevent mobile phones and
devices from connecting to communication signals.
File Format: Refers to file type based on file structure, layout,
or how a particular file handles the information (sounds,
words, images) contained within it. A file’s format is usually
indicated by the three- or four-letter file extension in the
MS-DOS filename, e.g., .doc or .jpg.
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