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Política criminal

versión On-line ISSN 0718-3399


DUCE J, Mauricio. An empirical approach to the use and practices of expert evidence in the Chilean criminal procedure in light of its impact on wrongful decisions of the system. Polít. crim. [online]. 2018, vol.13, n.25, pp.42-103. ISSN 0718-3399.

The paper presents the results of a research oriented to offer an empirically based approach about the practices and uses of expert evidence in our criminal justice system (with focus on the Metropolitan Region), in the light of its impact on wrongful decisions. The findings show several practices that have been described at a comparative level as dangerous in terms of increasing the likelihood of wrongful convictions, such as, use of evidence of low reliability and scarce control of its quality by the parties and judges en different procedural stages. The paper concludes with the identification of some lines of future work oriented toward minimizing the risks. Those includes: development of specialized training programs to legal actors of the system, strengthening of forensic specialties and the work of professional expert community and proposals of legal reform oriented to improve controls in the use of this evidence.

Palabras clave : Expert witnesses; expert evidence; wrongful convictions; criminal justice system.

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