Modelos forenses experimentales para la estimación del intervalo postmortem (IPM) sobre restos de Sus scrofa domesticus

The estimation of the post-mortem interval (PMI) can be obtained from eyewitness accounts or other types of ante-mortem evidence, such as records obtained using electronic devices or video footage. However, these testimonial sources, if available, do not usually provide the full account of an investigation. In this sense, researchers should use different methodological strategies, whether physical or chemical, to estimate the post-mortem interval. The systematic study over a calendar year made it possible to construct predictive sequences of decomposition from the temperature and humidity record in two different environments within wetland areas in the Buenos Aires metropolitan area, resulting in a methodological instrument to estimate the PMI in biological remains of pigs (Sus scrofa domesticus) of 35-40 kg. The estimation of the post-mortem interval is based, to a large extent, on post-mortem changes present in the body; however, climatic factors and the context of deposition of the biological remains are critical factors to be taken into account in the chronology of this process. Although forensic scientists may have access to a large amount of technical/methodological information to estimate time of death, they must also have prior knowledge of the decomposition process at a local level to provide an estimate of the post-mortem interval that may be useful in a medicolegal investigation

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