Knife cut marks inflicted by different blade types and the changes induced by heat: a dimensional and morphological study

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dc.contributor.advisor
dc.contributor.authorVachirawongsakorn, Vijarn
dc.contributor.authorPainter, Jonathan
dc.contributor.authorMárquez-Grant, Nicholas
dc.date.accessioned2021-10-29T14:38:50Z
dc.date.available2021-10-29T14:38:50Z
dc.date.issued2021-10-29
dc.description.abstractDetailed information on skeletal trauma analysis of burned bone is important to ascertain the manner and cause of death in forensic casework. This research used three different knife types, one with a non-serrated blade, one a fine-serrated blade, and one a coarse-serrated blade, to inflict trauma to manually macerated Sus scrofa ribs (n = 240), and these ribs were later exposed to heat. Qualitative and quantitative analyses were conducted using macroscopic and microscopic techniques to assess specific characteristics of the cut marks. Differences in cut mark dimension and morphology of the ribs were investigated. After heat exposure, the cut marks on the rib samples remained recognisable and did not alter considerably. A level of dimensional and morphological preservation was reliant on the cutting action and the features of the knife blade as well as surrounding bone injury. The cut marks inflicted by the non-serrated blade remained recognisable despite exposure to the burning process. However, the cut marks inflicted by the coarse-serrated blade were likely to change significantly when exposed to heat. This study leads to two important results: (1) identification of pre-existing cut marks prior to heat exposure is possible in reconstructed burned bone fragments, and (2) cut marks from different types of knife blades showed dissimilar responses to heat. The outcomes obtained in this study stressed the need to adopt great care with the effects of heat on skeletal trauma analysis.en_UK
dc.identifier.citationVachirawongsakorn V, Painter J, Márquez-Grant N. (2022) Knife cut marks inflicted by different blade types and the changes induced by heat: a dimensional and morphological study. International Journal of Legal Medicine, Volume 136, Issue 1, January 2022, pp. 329–342en_UK
dc.identifier.issn0937-9827
dc.identifier.urihttps://doi.org/10.1007/s00414-021-02726-5
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/17222
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectPre-burning traumaen_UK
dc.subjectSharp force traumaen_UK
dc.subjectSkeletal trauma analysisen_UK
dc.subjectForensic anthropologyen_UK
dc.subjectCut marksen_UK
dc.titleKnife cut marks inflicted by different blade types and the changes induced by heat: a dimensional and morphological studyen_UK
dc.typeArticleen_UK

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