Centro de Documentação da PJ
Analítico de Periódico
38831
The efficacy of bleach for blood decontamination of evidence placards / Anna Enzweiler ..[et al.]
Journal of Forensic Identification, Vol. 75, nº 3 (July-September 2025), p. 237-249
CD 357.
PRESERVAÇÃO DA PROVA, LOCAL DO CRIME, ANÁLISE DE SANGUE, ANÁLISE LABORATORIAL, ESTUDO DE CASOS, CIÊNCIA FORENSE
Crime scene investigation is a fundamental aspect of forensic science, where maintaining the integrity of evidence is essential for its admissibility in court. The repeated use of crime scene equipment introduces significant risks of cross-contamination, while standardized decontamination protocols may remain vague or absent. This study evaluates the efficacy of the Activate™ 10:1 Institutional Bleach Dilution System for decontaminating blood from evidence placards, focusing on varying submersion intervals. Results demonstrate that placards submerged for 30 minutes or more, followed by hand-drying and air-drying, achieved optimal decontamination levels when assessed using Hemastix® presumptive testing. The findings emphasize the importance of environmental and resource considerations, emphasizing the need for further validation under diverse operational conditions. This research addresses a critical gap identified by the Organization of Scientific Area Committees (OSAC) in the standardization of decontamination practices and highlights the necessity for ongoing advancements in mitigating cross-contamination risks during forensic investigations.
