+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

MicroCT detection of gunshot residue in fresh and decomposed firearm wounds

, : MicroCT detection of gunshot residue in fresh and decomposed firearm wounds. International Journal of Legal Medicine 126(3): 377-383

Gunshot residue (GSR) evidence may be altered or obscured by after-death events such as putrefaction, autolysis, and/or damage by animals. The present study aimed at evaluating and comparing the amount and differential distribution of GSR utilizing microcomputed tomography (microCT) analysis of fresh and decomposed gunshot wounds. A total of 60 experimental shootings at three different firing distances (5, 15, and 30 cm) were performed on human calves surgically amputated for medical reasons. Thirty specimens (10 for each tested distance) were immediately formalin-fixed, while the other 30 specimens were enclosed in a cowshed for 15 days, before formalin fixation (air temperature ranging from 11°C to 38°C). MicroCT analysis with three-dimensional image reconstruction detected GSR particles in all the investigated entrance wounds. In fresh specimens, GSR was concentrated on the skin surface around the entrance hole and in the epidermis and dermis layers around the cavity, while in decomposed specimens, the high density particles were detected only in the dermis layer. No GSR was detected in exit wounds of both fresh and decomposed specimens regardless of the tested firing distance. Statistical analysis demonstrated that also in decomposed wounds the amount of GSR roughly correlated with the distance from which the gun was fired, exhibiting, however, a higher variability than in fresh samples. The obtained results suggest that microCT analysis can be a valid screening tool for differentiating decomposed entrance and exit gunshot wounds.


PMID: 22086714

DOI: 10.1007/s00414-011-0648-4

Other references

Bulekbayev Z.Y.; Dal yan I.B.; Abakhanov A.A., 1992: New type of oil pool in Upper Permian sediments in the east of the North Caspian Depression. Petroleum Geology 26(11-12): 395-397

Gatto, B.; Vianini, E.; Lucatello, L.; Sissi, C.; Moltrasio, D.; Pescador, R.; Porta, R.; Palumbo, M., 2009: Effective DNA inhibitors of cathepsin g by in vitro selection. Cathepsin G (CatG) is a chymotrypsin-like protease released upon degranulation of neutrophils. In several inflammatory and ischaemic diseases the impaired balance between CatG and its physiological inhibitors leads to tissue destruction and platel...

Vanbreuseghem, R.; Gryse, G.D.W.ver, A.D.G.egoire, C.; Grem-Bergen, G.V.n., 1962: Existe-t-il en Belgique un probleme de la distomatose humaine ?. The authors discuss liver-fluke infection in man and animals in Belgium. According to the literature, human infections are very rare and watercress is said to be their principal source. Prophylactic measures are suggested.

Gargiulo, A.A., 1968: Genetic improvement of the vine at the Rama Caida (INTA) Agricultural Experimental Station, Mendoza. The collection now comprises 818 varieties, hybrids and species of Vitis and a list is given of the crosses carried out in the years 1953 and 1954 and 1957 to 1965. Of some 30, 000 F1 seedlings currently planted, about 15, 000 have commenced beari...

Waldhaeusl, W.; Fasching, P.; Ratheiser, K.; Nowotny, P.; Parzer, S., 1993: Insulin production following IV glucose, arginine and valine Quantitative change in patients with impaired glucose tolerance but qualitative difference in NIDDM. Diabetologia 36(SUPPL 1): A177

Oto, M.; Tsuchiya, Y.; Ono, T.; Miki, A.; Saisho, H., 1970: Medical application of transcutaneous cholangiography by x-ray television. Rinsho Hoshasen. Clinical Radiography 15(6): 385-391

Stolyarov, M.V., 1996: The origin of the orthopteran fauna of the Transcaucasus 4 Species of tropical origin. Entomological Review (English Translation of Entomologicheskoye Obozreniye) 75(6): 37-52

Walker, K.; Badawi, N.; Hamid, C.H.; Vora, A.; Halliday, R.; Taylor, C.; Shi, E.; Roy, G.T.; Simpson, E.; Holland, A.J.A., 2008: A population-based study of the outcome after small bowel atresia/stenosis in New South Wales and the Australian Capital Territory, Australia, 1992-2003. The purpose of the study was to describe the incidence, epidemiology, and survival of infants with small bowel atresia/stenosis in New South Wales (NSW) and the Australian Capital Territory (ACT), Australia. A population-based cohort study was con...

Poinar, G.O.; Jr. Verenstschuk, G.V., 1970: A new strain of entomopathogenic nematodes and geographical distribution of Neoaplectana carpocarpsae Weiser Rhabditida, Steinemematidae. Zool Zh, 49: 966-969

Tayfour, A.; Milliere, J.B.; Veillet Poncet, L., 1982: Growth and proteolytic activity of Pseudomonas fluorescens 28 P 12 on milk retentates stored at low temperature. Growth and proteolytic activity of Pseudomonas fluorescens 28 P 12 were studied during storage at 4, 7 or 10 degrees C of milk and retentates obtained by ultrafiltration of raw milk at 60 degrees C for 75 min. In all retentates (concentrated up to...