In certain circumstances it may be important to know when a document was created,
or if a date that appears on the document is accurate. Through a variety of scientific
examinations and techniques, a Forensic Document Examiner can often answer the
following related questions:
- Is the written signature contemporaneous with other information on the document?
- Was it added at a later time? (relative dating)
- Are the entries in a chart or ledger entered over a period of time, or all at once?
- Is this document a recent fabrication?
- Was the paper, pen, typewriter, printer, photocopy machine available (manufactured) at the
time of the purported date of the document?
- Is the date on this fax header authentic?
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Detection of Document Alterations
Examination of Medical Records/Charts
Field Examination
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Documents Submitted for
Dating Include:
MEDICAL RECORDS
MEDICAL FILES/CHARTS
HISTORICAL DOCUMENTS
COUNTERFEITS
DIARIES & JOURNALS
LEDGERS
RECEIPTS/INVOICES |
ALR Forensics maintains extensive reference files on typewriters, fax machines, print process developments and inventions to assist in the investigation of a document's purported date.
When performing a document dating examination, a forensic
document examiner must take into all of the visible and non-visible elements of a document to the naked eye. Some of the non-invasive, non-destructive examinations may include:
- Ink examinations (non-chemical, non-destructive)
- Watermark analysis
- Development of latent handwriting and other marks
- Paper examination
- Print Process Identification
- Photocopier Identification
- Fax Machine Identification
- Typewriter Identification
*Chemical ink dating is not utilized in this type of examination |