Handbook of Forensic Services (pdf) - FBI

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Handbook of Forens c Serv ces 2007 Questioned Document Examinations Handwriting and Hand Printing The exam nat on and compar son of handwr t ng character st cs can determ ne the or g n or authent c ty of quest oned wr t ng, although not all handwriting is identifiable with a specific writer. Intent and such tra ts as age, sex, and personal ty cannot be determ ned from handwr t ng exam nat ons. Some reasons for nconclus ve results nclude: ß ß ß ß ß ß L m ted quest oned and/or known wr t ng. Lack of sufficiently comparable known writing for compar son. Lack of contemporaneous wr t ng or lapse of t me between execut on of quest oned and known wr t ng. D stort on or d sgu se n the quest oned and/or known wr t ng. Lack of sufficient identifying characteristics. Subm ss on of photocop ed ev dence nstead of or g nal ev dence. 108
Handbook of Forens c Serv ces 2007 Procedures for Obtaining Known Writing Exemplars ß ß ß ß ß ß ß The text, s ze of paper, space ava lable for wr t ng, wr t ng nstrument, and wr t ng style (handwr t ng or hand pr nt ng) must be as close to the or g nal wr t ng as poss ble. G ve verbal or typewr tten nstruct ons concern ng the text to be wr tten. Do not g ve nstruct ons on spell ng, punctuat on, or arrangement of wr t ng. All exemplars must be on separate p eces of paper. The wr ter and w tness must n t al and date each page of wr t ng. Do not allow the wr ter to see the prev ous exemplars or the quest oned wr t ng. Remove each exemplar from the wr ter’s s ght as soon as t s completed. Numerous repet t ons may be necessary to obta n naturally prepared wr t ng. Obta n exemplars from the r ght and left hands. 109
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Handbook of Forensic Services (pdf) - FBI

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