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BEFORE 1. Know the questioned document (QD). Identify the paper type and instrument used to create the writing. Determine if written in ink, pencil or other. 2. Prepare paper and writing implements prior to the sample collection investigative interview session. The investigator must obtain a suitable sample for analysis. 3. Prior to the interview sample as the subject to "sign in" your guest log or fill in a "form" of some type. Typically we ask that they sign a for that explains the interview process and an identification of the subject. In this way you obtain a sample outside of the actual sampling process. |
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DURING Make and Note Observations: The subject should be under direct or indirect observation at all times. Is the subject nervous, in ill health, is the writing hand in some unnatural position (this should be observed well before the session) in comparison to the earlier sign in. Is the subject writing fast or slow. The investigator should point out any unusual action by the subject and encourage them to write naturally. 1. Never allow the subject to see the questioned material. 2. Provide similar materials that were used in the questioned document. Do not allow the subject to use their own writing instruments. 3. The writing material in question should be dictated to the subject so that any spelling errors will be reproduced by the subject or be provided a typed copy of the material that is to the sample collected. 4. The samples should be removed from the subjects view as soon as the sample is complete. Download our Specimen Analysis Forms (SAF) and when used should be provided on at a time. 5. The investigator may request in writing that the subject write specific words using specified letters and letter case An example would be to as the subject to use different letters in combination or otherwise. 6. Number each sample as soon as completed as a known document (KD-1, KD-2,...) and have the subject, date, e sign and print their name on each sample. AFTER Immediately upon completing the investigative session the samples should be secured with controlled access and not to be seen by the subject again. Prepare the sample for submission to the NSP laboratory for analysis. If being submitted for a level one analysis quality photocopies should be scanned using the highest resolution available. Scans of different sized enlargements at maximum resolution is desirable. For a level two analysis the originals must be sent hand delivered registered. In call cases copies should be made and kept available for the investigator. |
For Questions about
a Forensic Forgery Analysis E-mail us here.
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