Cuidados na elaboração de laudos periciais envolvendo vítimas fatais de queda de alturas usando o Tracker

Аннотация

Nesse trabalho busca-se averiguar se o Tracker é confiável na elaboração de laudos periciais, em casos envolvendo vítimas de queda de alturas, quando esses são captados por câmeras de vídeo monitoramento/segurança. Para isso, foram investigados na literatura os dados extraídos do Tracker, principalmente as grandezas físicas como aceleração e velocidade para corpos em queda. Recomenda-se a não utilização do Tracker quando a aceleração da gravidade obtida pela análise das imagens seja consideravelmente destoante do padrão medido na localidade do incidente (precipitação).

 

Abstract

In this work we try to make sure that the Tracker is reliable in the elaboration of forensic reports involving victims from fall from high when these are recorded by security/ monitoring video cameras. For that, was investigated in the literature the data extracted by Tracker, mainly the physics quantities as acceleration and velocity to bodies in fall. We recommend the non use of the Tracker when the acceleration of the gravity obtained by video analyses be considerable different from the standard measured in the incident (precipitation) location.

 

Библиографические ссылки

  1. D. Risse; A. Bijnsch; B. Schneiderb; G Bauer. Risk of dying after a free fall from height. Forensic Sci. International 78: 187-191 (1996).
  2. S. Goren; M. Subasi; Y. Týrasci; F. Gurkan. Fatal falls from heights in and around Diyarbakir, Turkey. Forensic Sci. International 137: 37-40 (2003).
  3. A. Thierauf; J. Preuß; E. Lignitz; B. Madea. Retrospective analysis of fatal falls. Forensic Sci. International 198: 92-96 (2010).
  4. R. Cross. Fatal Falls from a Height: Two Case Studies. J Forensic Sci 51: 93-99 (2006).
  5. T.A. Peng; C.C. Lee; J. C. C. Lin; C. T. Shun; K. P. Shaw; T. I Weng. Fatal Falls from Height in Taiwan. J Forensic Sci 59: 978-982 (2014).
  6. A. Petaros; M. Slaus; M. Coklo; I. Sosa; M. Cengija; A. Bosnar. Retrospective analysis of free-fall fractures with regard to height and cause of fall. Forensic Sci. International 226: 290-295 (2013).
  7. B. M. Casali; A. Battistini; A. Blandino; C. Cattaneo. The injury pattern in fatal suicidal falls from a height: An examination of 307 cases. Forensic Sci. International 244: 57-62 (2014).
  8. S. K. Rowbotham; S. Blau. Skeletal fractures resulting from fatal falls: A review of the literature. Forensic Sci. International 266: 582.e1 - 582.e15 (2016).
  9. G. Laua; P. L. Ooi; B. Phoon. Fatal falls from a height: The use of mathematical models to estimate the height of fall from the injuries sustained. Forensic Sci. International 93: 33-44 (1998).
  10. T. C. Atanasijevic; S. N. Savic; S. D. Nikolic; V.M. Djokic. Frequency and Severity of Injuries in Correlation with the Height of Fall. J Forensic Sci 50: 1-5 (2005).
  11. W. Wach; J. Unarski. Fall from height in a stairwell – mechanics and simulation analysis. Forensic Sci. International 244: 136-151 (2014).
  12. S. Park; J. G. Cha; Y. Lee; I. Seo; B. Lee; Y. Choi; W. Choi; K. Yang. Biomechanical analysis of biphasic distribution of skull injury in falls from height. Forensic Sci. International 255: 112-117 (2015).
  13. M. Milanowicza; K. Kędzior. Active numerical model of human body for reconstruction of falls from height. Forensic Sci. International 270: 223-231 (2017).
  14. J. Adamec; K. Jelen; P. Kubovy; F. Lopot; E.Schuller. Forensic Biomechanical Analysis of Falls from Height Using Numerical Human Body Models. J Forensic Sci 55: 1615-1623 (2010).
  15. H. Muggenthaler; S. Drobnik; M. Hubig; M. Schönpflug; G. Mall. Fall from a Balcony—Accidental or Homicidal? Reconstruction by Numerical Simulation. J Forensic Sci 58: 1061-1064 (2013).
  16. D. Brown. Tracker Video Analysis and Modeling Tool. Acessado em 19/07/2018 de https://physlets.org/tracker/
  17. D. Halliday; R. Resnick; J. Walker. Fundamentos de Física: Gravitação Ondas e Termodinâmica 4ª Ed., LTC, Brasil (1996) 54-56.
  18. C. Sirisathitkul; P. Glawtanong; T. Eadkong;Y. Sirisathitkul. Digital video analysis of falling objects in air and liquid using Tracker. Rev. Brasileira de Ens. de Física, 35: 1504-1 – 1504-6 (2013).
  19. National Institute of Metrology (Thailand). Thailand Absolute Gravity Measurement Project, http://www.nimt.or.th/nimt/include/g.html, acessado em 17/03/2011.
Лицензия Creative Commons

Это произведение доступно по лицензии Creative Commons «Attribution-NonCommercial-ShareAlike» («Атрибуция — Некоммерческое использование — На тех же условиях») 4.0 Всемирная.

Copyright (c) 2019 Revista Brasileira de Criminalística

Делиться

Скачать

PDF (Português (Brasil))

Авторы)

  • Breno Rodrigues Segatto,

    • Breno Rodrigues Segatto

    Universidade Federal do Espírito Santo

    Departamento de Ciências Naturais

    Ciências Físicas