Electrocution Death: Exit Mark Injury Use in the Suggestion of Body Posture During Forensic Investigation
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Electrocution Death: Exit Mark Injury use in the Suggestion of Body Posture during Forensic Investigation Pudji Hardjanto1,4 Simon Martin Manyanza Nzilibili1,3 Ahmad Yudianto1,2 1Forensic Science Program, Post Graduate School Universitas Airlangga, 4-6 Airlangga Rd., 60286 Surabaya – Indonesia. 2Department of Forensic and Medico-legal, Faculty of Medicine, Universitas Airlangga, Surabaya – Indonesia 3Ministry of Health, Community Development, Gender Elderly and Children, Dodoma – Tanzania. 4Criminal Investigative Unit, Polrestabes Surabaya, Indonesia. Keywords: Body Posture, Electrocution, Exit Injury, Forensic Reconstruction Abstract: Since then, electrocution and forensic investigation of electric death associated with criminal offenses have established the importance of mark injuries. The marks (entry and exit) came into significance as they were/are used to establish fatality and extent of electric power electrocuted. Unlike entry, exit injury has presented attention to scientists on its adequate and vital use in explaining forensic incident despite being infrequent. To enrich forensic understanding and make use of this “silent witness – exit mark”, this study used four cases of related scenario. Three of the four cases were literature-based cases and one case involved in investigation. By interpreting the cases, this paper argued that exit injury contains useful information that can be related to posture of the body before electrocution. This paper thereby suggested the presence of the exit injury to be related to body posture, sole plantar exit injury in particular (stood position). This would help investigators and scientists to determine the immediate probable position and state of victim before electrocution. Furthermore, the suggestion would assist reconstruction processes that seek to find out the event originality through responding to fundamental and core principle tools of incidence investigation, CoPRRR, and the 6Ws. 1 BACKGROUND Apart from establishing fatality of the event occurred due to electrocution, a possibility of Exit marks as to entry injury marks are common and understanding body positioning or gesture during crucial findings to establish electrocution associated electric conduction may be suggested and explored. deaths (Kumar et al. 2015; Kuhtic et al. 2012). On This is from the fact of potential resistance provided the occurrences of these injuries, together with mark at particular body surface. According to entry and exit of encountered electric flow, the (Manigandan et al. 2014), the amount current energy is converted in burning or shocking to the expected for passage depend on the resistance body. Location of occurrence is indefinable as provided by the body or body part. Thus, in return, depending on contact of conduction but palm and the extent of injuries to be caused proportionate the sole (plantar) are the common parts found with these magnitude passed. Body positioned in standing marks, exit being on sole and entry primarily on while contacting ground or non-standing with free palm. Though these two marks occur together, still contact dictate the electric conduction to formation there are some affirmations which have been of exit wounds in plantar. This approach might established that exit injury can occasionally occur reveal and ease the reconstruction of events in without the presence and occurrence of entry marks forensic investigation. (Guntheti et al. 2012). That is, only exit injury mark observation is found in just few cases that are rare to 1.1 Justification and Purpose meet in electrocution scenario. Its fatality in appearance may present similar to entry but its Despite that exit marks in electrocution are peculiarity is on a more tissue damage, skin splits discussed to have substantial use in establishing and raising (Rao n.d.). fatality forensic proof, limited studies have 493 Hardjanto, P., Nzilibili, S. and Yudianto, A. Electrocution Death: Exit Mark Injury Use in the Suggestion of Body Posture during Forensic Investigation. DOI: 10.5220/0007545704930498 In Proceedings of the 2nd International Conference Postgraduate School (ICPS 2018), pages 493-498 ISBN: 978-989-758-348-3 Copyright c 2018 by SCITEPRESS – Science and Technology Publications, Lda. All rights reserved ICPS 2018 - 2nd International Conference Postgraduate School enumerated the sign and even yet related to body That is, high voltage electrocution burns resemble posture sustained before electric accident. This burns caused by other sources, especially if the study, therefore, suggested the posture/gesture of the person survives for few days. In that case, body before the electrocution in relation to exit circumstantial evidence in correlation with the injury in order to help reconstruction during forensic autopsy findings helps in determining the cause and investigation. Also, to contribute on the knowledge manner of death. Crime scene findings also help to of rare occurring exit injury marks. explain the pattern of injuries observed at autopsy in addition to contact-related features together with clinical signs that rule out current flow (Fish & 2 METHOD Geddes 2009). The literature discussion has also considered skin The study reviewed three previously published cases resistance (impedance), internal body resistance, and presented an analysis of the encountered case to current path through the body, the let-go phenomenon, skin breakdown, electrical stimulation make a discussion of four cases in total. Both reviews of the cases and the encountered case in of skeletal muscles and nerves, cardiac place were analysed to generate suggestive findings. dysrhythmias, arrest, and electric shock drowning. From which, the high-voltage burns include ground Findings presented are based on; external examination of the dead body, internal observation, faults, ground potential gradient, step and touch post-mortem, and autopsy findings, and also crime potentials, arcs, and lightning remain essential. As whole, incorporate the mechanism of electric current scene study findings focusing on exit marks and body gesture relation. in the body; how and why specific accidents occur and what medical and surgical problems might be expected in reaching the manner and cause of death (Fish & Geddes 2009; Guntheti et al. 2012). 3 ELECTROCUTION AND MARK However; the occurrence of deaths due to INJURIES REVIEW electrocution continue to be infrequent and so to incidence of the injury marks. This lowered The term electrocution is referred to death caused by tendency continues to qualify the virtual accidental electric shock. This is a sudden violent response to nature of these kind of death from self-execute, electric current flow to any part of a person's body. suicides nature, and homicides to those executed That violent response causes either primary entirely by alternating current (Wick & Byard 2009). electrical injury - tissue damage produced directly The lowered prevalence and incidence by electrical voltage or secondary injuries, such as occurrence is also perpetuated by general preventive thrown falls, are common (Fish & Geddes 2009). measures taken with time for electric safety usage. Death occurs when a sufficient amount of current Remained fatalities occasion according to (Guntheti passes through body parts by contact with electric et al. 2012) with other literature still continue to equipments, frayed cords, poorly insulated wires, reveal palmer as the commonest site for entry wound ungrounded electric instruments, and working in and crease fold of hands. The inference is that the electric posts without any protective guard (Fish & commonest site of exit wound is feet, the sole. The Geddes 2009). The damages or burns caused due to study also concludes to four patterns of electrical contact are generally referred to as entrance and exit injuries: entry wound alone, exit alone, both and wounds. The kind of injuries according to (Fish & flash burns, and no external typical signs with Geddes 2009; Kuhtic et al. (2012) sometimes get accidental nature and manner of electrocution. In misleading interpretation to gunshot wounds by this study; four cases are discussed. Three from absence of bullet exit wound due to logging. literature and compared to one involved in As pointed out earlier, these marks are essential investigation making a total of four. The analysis to the establishment of electrocution deaths and was made according the purpose of the aimed become serious in forensic investigation where benefit above. criminal offence is inquired from the scenario. The encountered obstacle in investigation might be 3.1 Literature Selected Case interrupted by a poor definition or absence of those Presentation mark as explained in (Parakkattil et al. 2017). The study institutes that the difficult of investigating The discussion of case one and two was obtained electrocution fatality cases are dependant of voltage. from the study named “Fatal High Voltage 494 Electrocution Death: Exit Mark Injury Use in the Suggestion of Body Posture during Forensic Investigation Accidental Electrocution – Two Case Reports” burn area of size 6x3.5 cm was on plantar aspect of where the author discussed cases of high voltage the right foot due to tissue heating up as appears in (Manigandan et al. 2014). With other danger figure 2, keratin dissolution and separation of encountered the two cases, this article narrated and epidermal layers. The report continued with a deeply discussed sustained injuries of whether presence or scorched wound over the medial aspect