Detalhes bibliográficos
| Ano de defesa: |
2012 |
| Autor(a) principal: |
Chassot, Fernanda Girardi da Costa
 |
| Orientador(a): |
Alho, Clarice Sampaio
|
| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Pontifícia Universidade Católica do Rio Grande do Sul
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Biologia Celular e Molecular
|
| Departamento: |
Faculdade de Biociências
|
| País: |
BR
|
| Palavras-chave em Português: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
http://tede2.pucrs.br/tede2/handle/tede/5452
|
Resumo: |
I offer this thesis, which serves the purposes of the Programa de Pós-Gradução em Biologia Celular e Molecular, PUCRS and Coordenação de Aperfeiçoamento de Pessoal de Nível Superiror (CAPES), in order to corroborate the routine practice in forensic genetics. Fired cartridge cases are commonly present in crime scenes with firearms and sometimes they are the only evidence available for the elucidation of a fact, which makes them investigation key players. To load a firearm the individual has to touch the ammunition, resulting in deposition of epithelial cells on the surface of the cartridges. However, in forensic genetic laboratories routine, DNA tests are not required for these signs as often as they are found. The reason for the underuse of these materials is the low concentration and high rate DNA degradation wich occurs due to overheating of the cartridge that can reach 1800oC. Besides that, the inhibition of PCR, few reports of success in obtaining genetic profiles from fired cases and the scarce verifying feasibility studies of these samples are factors that discourage this practice. In order to corroborate the genetic research routine, we have established a partnership between the sectors of Instituto Geral de Perícias do Rio Grande do Sul (IGP/RS) Forensic Genetics and Ballistics and Laboratório de Genética Humana e Molecular da PUCRS (LGHMPUCRS). The present study developed a controlled research to obtaining and analysis of nuclear DNA from fired cartridge cases. The study was based on standard protocols and/or indicated by the Forensic Science Department of Virginia. This study demonstrated that is possible to use fired, or not, cartridge cases as source of DNA to identify individuals who involved with its handle. However, considering the limited efficiency, the restricted effectiveness and the cost-benefit, means that the DNA analysis strategy from cells left in cartridges/cases is not priority in forensics lab routine. But, in many situations it could be the only option to investigators and, at this moment, our results and protocols herein will have main importance. This study concluded that following protocols here presented it is possible to produce data for human identification. The use of these protocols and their results will be definitive when used as an additional part of a police investigation and/or as evidence in criminal proceedings |
