Effect of Fire on DNA and its profiling in homicide cases

Kumar, Naresh; Chauhan, Amit; Gupta, Ritika; Maitray, Aanchal; Sharma, Dinesh; Shukla, Saurabh

doi:10.15406/frcij.2019.07.0268

Cited by 4 publications

(3 citation statements)

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“…This result agrees with the study of the effect of fire on DNA and extreme heat on blood, seminal (12), no DNA were extracted from samples exposed to 100°C and the yield of DNA was significantly higher for all the samples that were not in direct contact of fire.…”

Section: Resultssupporting

confidence: 91%

Degradation of DNA in Whole Blood and Semen by UV Radiation and High Temperature at Varying Time Lengths of Exposure

Mohsin¹,

Zageer²

2022

JUAPS

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The objective of this investigation was to study the effect of artificial ultraviolet (UV) radiation of varying wavelengths on the degradation of whole human blood DNA and semen over varying time lengths of exposure. DNA degrades rapidly when exposed to environmental factors like high temperature and UV-radiation. The extent of damage done to human DNA in relation to time of exposure to artificial UV and high temperature above 100°C that make blood samples unsuitable for forensic analysis has not yet been determined, and using two methods of extraction the organic and kit methods. The gel electrophoresis was used to appear the bands.

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Section: Resultssupporting

confidence: 91%

Degradation of DNA in Whole Blood and Semen by UV Radiation and High Temperature at Varying Time Lengths of Exposure

Mohsin¹,

Zageer²

2022

JUAPS

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“…They also used gauze to wipe the victim's vital areas suspected of having contact with the perpetrator, such as the nipples of the breasts. The gauze was used to find evidence of the perpetrator's DNA on the victim's body (Kumar, 2019). The gauze found fingerprints and saliva on the victim's nipples.…”

Section: Research Results and Discussionmentioning

confidence: 99%

Scientific Investigation as Part of Criminal Science in Murder Crime Investigations

Tamza

Shafira

2023

FJMR

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The murder case of a female pulmonologist in Nabire, Central Papua, in March 2023 was used as a research study because it was a special case. Because at that time, investigators had difficulty determining the suspect because of the lack of evidence at the beginning of the investigation. This study aims to obtain a description of the Scientific Investigation Technique in disclosing the crime of murder by using a qualitative approach, while the research method is the case study method. The research was conducted at the Nabire Police Criminal Investigation Unit to find out the steps of the Nabire Police Criminal Investigation Unit in using Scientific Investigation through DNA. This study shows that the Scientific investigation method used by the Barelang Police Criminal Investigation Unit has assisted in disclosing the crime of murder effectively with supporting and inhibiting factors.

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“…DNA is usually taken from bones as they are rigid and one can get good quality of DNA from bones but it is quite challenging and time-consuming task 2 . In year 2019, Naresh Kumar and his colleagues conducted a study on 'Effect of fire on DNA and its profiling in homicide cases' and concluded that DNA has proved its value in the identification of unidentified dead bodies or from the burnt cases 5 . By extending their work, Naresh Kumar and his colleagues published research entitled on Qualitative analysis of DNA profile attained from partial dead bodies in 2021 10 .…”

Section: Introductionmentioning

confidence: 99%

Quantification of DNA profiling from burnt remnants

Padmanabhan

Chauhan

Sainath

et al. 2022

ijhs

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In crime scene investigation, various evidences are attained in distinct forms by forensic experts. These evidences are often recovered in contaminated form, decomposed or partial form especially skelton remnants. In homicidal cases, dead bodies are redeemed partial burnt/ completely. In such cases, identification of an individual from highly burnt remnants is established by DNA profile. It can’t be neglected that hard tissues (bones and teeth) can bear extreme fire impact and often attained with some partial flesh pieces. Although, a considerable degree of degradation may occur in DNA retrieved from burnt bone pieces. This study is mainly focused upon the extraction and quantification of DNA profile generated from such remnants. Effect of fire on DNA and extreme heat on blood, blood in form of prime source of DNA are believed to be no longer traceable after exposure to a temperature of 1000°C. The outcome of this research will help researchers to quantify DNA profile, identify the deceased person/ dead bodies from such cases.

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Effect of Fire on DNA and its profiling in homicide cases

Cited by 4 publications

References 0 publications

Degradation of DNA in Whole Blood and Semen by UV Radiation and High Temperature at Varying Time Lengths of Exposure

Degradation of DNA in Whole Blood and Semen by UV Radiation and High Temperature at Varying Time Lengths of Exposure

Scientific Investigation as Part of Criminal Science in Murder Crime Investigations

Quantification of DNA profiling from burnt remnants

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