Any document about which some issue has been raised or that is the subject of an investigation
an authentic sample used for comparison purposes such as handwriting
Normal deviations found between repeated specimens of an individual's hand writing
The removal of writings, typewriting, or printing from a document. Normally accomplished by either chemical means of an abrasive instrument
A property exhibited by some dyes that emit infrared light when exposed to blue - green light
The blotting out or smearing over o writing or printing to make the original unreadable
Any document that has become darkened and brittle through exposure to fire or excessive heat
Impressions left on papers positioned under a piece of paper that has been written
A pictorial representation of the frequency , duration, and amplitude of being human voice sounds
Transmitting terminal identifier
A header that is printed on the top of each fax
happens when a document image is stored in digital memory
a minute area of illumination on a display screen, one of many from which an image is composed
A record
produced by with time shown along the horizontal axis, and intensity indicated by varying shades of darkness of the pattern
What are impressions left under the paper that has been written on?
Indented writing, or second page writing, is the impression from the writing instrument captured on sheets of paper below the one that contains the original writing.
Which technique would be used to reveal writing on a piece of paper that was under a note at the time it was written?
Revealing indented writing using the electrostatic detection apparatus (ESDA) (Note: Processing of paper with an electrostatic detection device must be done prior to other destructive examinations such as processing the document for latent fingerprints or collection of DNA.)
What features can be considered in attempting to determine when a document was written or produced?
The ink, paper, writing tools, ribbons, stamps and seals used in production of the document may all reveal important clues. The examiner may even discover valuable evidence in a document's invisible impressions. A key element of document examination focuses on handwriting.
What is the term given for the act of blotting or smearing over a writing or printing to make the original document unreadable?
obliteration. Blotting out or smearing over writing or printing to make the original unreadable.