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Publication
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| Research Title |
A study of effect of alcohols pray on latent fingerprint quality on non-porous forensic evidences on Covid-19 pandemic period
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| Date of Distribution |
26 November 2021 |
| Conference |
| Title of the Conference |
The 15th International Conference on Multi-functional Materials and Applications (ICMMA 2021) |
| Organiser |
Nakhon Si Thammarat Rajabhat University, Thailand |
| Conference Place |
Nakhon Si Thammarat Rajabhat University, Thailand |
| Province/State |
Nakhon Si Thammarat |
| Conference Date |
25 November 2021 |
| To |
26 November 2021 |
| Proceeding Paper |
| Volume |
2564 |
| Issue |
PO88 |
| Page |
333-336 |
| Editors/edition/publisher |
Panattha Buranasiri and Rachadaporn Benchawattananon |
| Abstract |
Actual Covid-19 pandemic situation when any case occurs, takes time to get to collect evidence
at the crime scene because sometimes the incident takes about 1 week. The result in unclear
fingerprints on witness objects, affect whom collects latent fingerprints and affect the quality
of the fingerprints. A study of effect of alcoholspray on fingerprint quality on forensic evidence
on Covid-19 pandemic period. To study of effect of different concentrations of alcohol gel on
fingerprint quality on glass and plastic. The objective of the research to study the alcohol hand
sanitizer with a concentration of 70 %,75% and 80 %, which will affect the latent fingerprints
on glass, plastic and metal witness objects after a period of time 1 , 5, 10, 15, 20, 25, 30, 45 and
60 days. Let the experimenter make a fingerprint stamp on the witness object, divided as
follows: 1. The subject must not wash his hands with alcohol spray before stamping his
fingerprint on the witness object for 1-2 hours, and then stamp the fingerprint on the witness
object 2. The test subjects wash their hands using 70% alcohol spray, leave it for 15 minutes,
and then stamp their fingerprints on the witness object. 3. The test subjects wash their hands
using 80% alcohol spray, leave it for 15 minutes, and then stamp their fingerprints on the witness
object. The force used to imprint fingerprints was approximately 750 -800 g (36,750 -39,250
N/m2), and the experimental temperature was about 29 -32 °C. Take time for study period of
time and test minutiae. Finding the alcohol hand sanitizer with a concentration of 70 %
keep the fingerprint better than 80 % alcohol hand sanitizer and many factors effect such as
temperature, humidity and individual fingerprint conditions. |
| Author |
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| Peer Review Status |
ไม่มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| ใช้สำหรับสำเร็จการศึกษา |
ไม่เป็น |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
ไทย