Malaysian Journal of Analytical Sciences Vol 18 No 1
(2014): 1 – 6
PERBANDINGAN KAEDAH
PEMBERUSAN SERBUK CAP JARI DAN PENGWASAPAN SIANOAKRILAT DALAM PENIMBULAN KESAN
CAP JARI PENDAM YANG TERDEDAH KEPADA KEADAAN PERSEKITARAN TEMPATAN
(Comparison of Powder Dusting and Cyanoacrylate Fuming
Techniques in Retrieving Latent Fingerprint Exposed to Environment Conditions)
Yosmetha
Mayalvanan, Sri Pawita Albakri Amir Hamzah, Lee Loong Chuan, Muhamad Hilmi
Baba,
Amidon Anan*
Program Sains
Forensik,
Pusat Pengajian
Sains Diagnostik & Kesihatan Gunaan, Fakulti Sains Kesihatan,
c/o Bilik 10,
Tingkat 3, Bagunan Kedekanan FST,
Universiti
Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
*Corresponding author: amidon.anan@yahoo.com
Abstrak
Kesan cap jari pendam ialah
bahan bukti terbaik untuk membuktikan kehadiran seseorang di tempat kejadian.
Terdapat pelbagai teknik yang digunakan untuk penimbulan cap jari pendam. Dua
teknik yang kerap digunakan adalah teknik pengwasapan sianoakrilat dan
pemberusan menggunakan serbuk cap jari. Kajian ini bertujuan untuk mengenal
pasti teknik yang lebih berkesan terutamanya dalam penimbulan kesan cap jari
pendam yang telah didedahkan kepada keadaan persekitaran tempatan. Metodologi
kajian termasuklah mengambil sampel cap jari daripada 18 orang subjek pada
permukaan gelas, perspek dan aluminum. Kesemua sampel didedahkan pada keadaan
persekitaran tempatan selama tiga hari. Sampel cap jari ditimbulkan dengan
menggunakan dua kaedah di atas. Perbandingan dilakukan antara kesan cap jari
sampel dan cap jari rujukan. Hasil kajian menunjukkan penimbulan menggunakan
teknik pengwasapan menghasilkan lebih banyak kesan cap jari yang jelas
berbanding dengan penimbulan menggunakan teknik pemberusan. Walaupun telah
didedahkan kepada keadaan persekitaran yang tidak kondusif, teknik pengwasapan
berjaya menimbulkan kesan cap jari pendam. Ini membuktikan yang teknik
pengwasapan merupakan teknik yang lebih berkesan untuk menimbulkan cap jari
pendam berbanding teknik pemberusan. Faktor permukaan cap jari mempengaruhi kualiti
kejelasan cap jari pendam.
Kata kunci: Cap jari pendam, wasap sianoakrilat, serbuk cap jari, teknik penimbulan,
keadaan persekitaran
Abstract
Latent fingerprints are one of
the best evidence to prove the presence of an individual’s presence at the crime
scene. There are many techniques available for a successful fingerprint
lifting. Two of the most common ones are fingerprint powder dusting and
cyanoacrylate fuming. This research aims to compare both techniques and
determine which has a higher success rate in retrieving fingerprints exposed to
local environmental conditions for three days. Fingerprint samples were
collected from 18 subjects on glass, perspex and aluminium slides. These
samples were then exposed to local environmental conditions for three days. The
fingerprints were then developed using the aforementioned techniques. Based on
the results, it can be safely said that, fuming results in clearer fingerprints
and more minutiae can be found from the retrieved fingerprints even with
exposure to less than optimum local conditions. This proves that fuming is a
better fingerprint lifting method to resolve latent fingerprint compared to
powder dusting. Surface on which the fingerprint is retrieved from influences
the quality of clarity of a latent fingerprint.
Keywords: Latent fingerprint, cyanoacrylate fuming, fingerprint powder, lifting
techniques, local conditions
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