Problems of Forensic Sciences 2016 Vol. 108 (CVIII) 623-631


Jagjeet Singh SAROA1, Komal SAINI2

1Documents & Photo Division, State Forensic Science Laboratory (H.P.), Shimla Hills, Junga, Himachal Pradesh, India
2Department of Forensic Science, Punjabi University, Patiala, Punjab, India

Authenticity of the photocopied documents must be determined as a prime requirement before considering them in place of original documents. Determination of the authenticity of photocopied documents includes identification of alteration by examining various features. The typed, printed, handwritten and signature portion of black as well as colour photocopied samples were examined under Olympus SZX7 Stereomicroscope (magnification 4 × 40). These samples were examined up to 3rd generation for various physical features. The results of this study showed that the alterations were detected in 37/100 (37%) black and 8/20 (40%) colour samples, when all the features were considered collectively. However, when the generation of photocopies was increased, the detection of the alterations became difficult because recopying of the altered copy hide most of the characteristics of alterations.

Słowa kluczowe
Authenticity; Photocopied documents; Generation; Stereomicroscope.

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