- P-ISSN 1225-0163
- E-ISSN 2288-8985
Polyvinylpyrrolidone과 1,2-indanedione 혼합물(PVP-IND)은 감열지에 부착된 잠재지문을 현출하는데 가장 좋은 시약이라고 알려져 있다. 그러나 PVP-IND가 감열지에 부착된 혈흔지문을 증강할 수 있는지에 대해서는 알려지지 않았으므로 PVP-IND의 혈흔지문 증강 능력을 연구하였다. 비교 대상으로는감열지에 부착된 혈흔지문을 증강할 때 가장 우수한 성능을 나타낸다고 알려진 amido black 수용액을 이용하였다. 그 결과, 물에 희석된 혈액이 묻은 손가락으로 만든 혈흔지문을 증강할 경우에는 PVP-IND가amido black 수용액보다 증강 능력이 우수했다. 반면 희석되지 않은 혈흔지문을 PVP-IND로 처리하면 융선이 번져 나타나서 amido black 수용액의 증강 능력이 우수했다. PVP-IND로 처리했을 때 융선이 번져서 나타나는 것은 PVP와 혈액에 포함된 amino acid가 반응했기 때문인 것으로 추정된다.
A mixture of polyvinylpyrrolidone and 1,2-indanedione (PVP-IND) is known to be the best reagent for developing latent fingerprints deposited on the surface of a thermal paper. However, no study has evaluated whether PVP-IND could enhance fingerprints in blood deposited on the surface of thermal paper. Therefore, in this study, the ability of PVP-IND to enhance the fingerprints in blood was investigated. Furthermore, aqueous amido black solution, which is known to be the best reagent for enhancing fingerprints in blood deposited on the surface of thermal paper, was used for comparison with PVP-IND. Therefore, while enhancing the fingerprints in diluted blood, PVP-IND enhanced the quality of fingerprints compared to aqueous amido black solution. The ridge diffused when the undiluted fingerprints in blood were enhanced with PVP-IND because PVP reacted with amino acids in blood; however, amido black solution yielded better results. When treated with PVP-IND, it is presumed that the ridge diffused due to the reaction of PVP and amino acids contained in the blood.
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