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Leonova E.N.

Kafedra sudebnoĭ meditsiny Pervogo MGMU im. I.M. Sechenova

Nagornov M.N.

Kafedra sudebnoĭ meditsiny Pervogo MGMU im. I.M. Sechenova

Kucha A.S.

Department of Forensic Medicine, I.M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia, 119991

The possibility for determining the height of the fall of the blood drops based on the size of the bloodspots

Authors:

Leonova E.N., Nagornov M.N., Kucha A.S.

More about the authors

Journal: Forensic Medical Expertise. 2019;62(1): 21‑23

DOI: 10.17116/sudmed20196201121

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THE POSSIBILITY FOR DETERMINING THE HEIGHT OF THE FALL OF THE BLOOD DROPS BASED ON THE SIZE OF THE BLOODSPOTS
THE POSSIBILITY FOR DETERMINING THE HEIGHT OF THE FALL OF THE BLOOD DROPS BASED ON THE SIZE OF THE BLOODSPOTS

To cite this article:

Leonova EN, Nagornov MN, Kucha AS. The possibility for determining the height of the fall of the blood drops based on the size of the bloodspots. Forensic Medical Expertise. 2019;62(1):21‑23. (In Russ.)
https://doi.org/10.17116/sudmed20196201121

Подписка 2026 Судебно-медицинская экспертиза (Forensic Medical Expertise)
МСФ на ЯМ
Использование инфографики авторами научных работ
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Abstract:

The objective of the present study was to determine the size of the bloodspots produced by the blood drops of different volume (5, 20, 40, and 80 mcl) falling down from different heights to enable the evaluation of the height of a suspended bloodstained object. The bloodspots of the blood drops of different volume (5, 20, 40, and 80 mcl) falling down from different heights were obtained under the experimental conditions. It was shown that the size of the bloodspots increases with the increasing height of fall: the greater the height the larger is the diameter of the bloodspots. Given that the drop volume is known, the size of the bloodspots can be used to determine the height of the suspended bloodstained object. In the practical work of the forensic medical expert, the blood drop volume is as a rule unknown, therefore the height of their fall can be roughly determined based on the morphological features of the bloodspots.

Keywords:

bloodspots
blood drops
blood drop volume
bloodspot diameter
height of the fall

Authors:

Leonova E.N.

Kafedra sudebnoĭ meditsiny Pervogo MGMU im. I.M. Sechenova

Nagornov M.N.

Kafedra sudebnoĭ meditsiny Pervogo MGMU im. I.M. Sechenova

Kucha A.S.

Department of Forensic Medicine, I.M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia, 119991

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References:

  1. Pigolkin YuI, Leonova EN, Dubrovin IA, Nagornov MN. The new working classification of blood stain patterns. Sudebno-meditsinskaya ekspertiza. 2014;1(57):11-15. (In Russ.)
  2. Pigolkin YuI, Leonov SV, Leonova EN. The reconstruction of the occurrence circumstances from the analysis of blood stains with the use of the three-dimensional modeling technique. Sudebno-meditsinskaya ekspertiza. 2016;4(59):25-27. (In Russ.) https://doi.org/10.17116/sudmed201659425-27
  3. Popov VL. Mediko-kriminalisticheskaya kharakteristika sledov krovi. SPb.: KOGUZ MIATs. 2010. (In Russ.)
  4. Muratov VA. Vliyanie vysoty padeniya i ugla naklona sledovospri-nimayushchei poverkhnosti na kharakter sledov ot kapel’ krovi. V kn.: Voprosy sudebnoi meditsiny. Vyp. 2. L.: BSME GUZ Lensoveta, 1979. (In Russ.)
  5. Badalyan AF, Sarkisyan BA, Karpov DA, Sidorenko NN. Morphological evaluation of blood drops depending on the size of the surface of separation the height of incidence and the properties of sensing materials. Meditsinskaya ekspertiza i pravo. 2013;3:29-32. (In Russ.)
  6. James SH, Eckert WG. Interpretation of bloodstain evidence at crime scenes. Boca Raton: CRC Press, 1999.
  7. Bevel T, Ross M. Gardner bloodstain pattern analysis. Boca Raton: CRC Press. 2008.
  8. Pigolkin YuI, Leonova EN, Leonov SV, Nagornov MN. The morphological features of a 20 mcl blood stain. Sudebno-meditsinskaya ekspertiza. 2015;2(58):36-38. (In Russ.) https://doi.org/10.17116/sudmed201558236-38
  9. Leonova EN, Vlasyuk IV. Features of morphology and mechanism of formation of traces of drops of blood of 40 microlitres. Dal’nevostochnyi meditsinskii zhurnal. 2015;2:65-69. (In Russ.)
  10. Leonova EN, Nagornov MN. Morphology of traces of drops of blood of the 80 microlitres. Meditsinskaya ekspertiza i pravo. 2015;4:19-22. (In Russ.)
  11. Gerasimov AN. Meditsinskaya statistika. M.: MIA, 2007. (In Russ.)
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