000			02077nam a2200313 4500
001			393395
090			_a393395
100			_a20150721d2014 y0pory50 ba
101			_aeng
200			_aA computerized database for bullet comparison by consecutive matching _bRecurso eletrónico _fAshley Chu, David Read, David Howitt
210			_a[Rockville, MD] _cNational Criminal Justice Reference Service (NCJRS) _d2014
215			_a1 CD-ROM _d12 cm
300			_aResearch report submitted to the U.S. National Institute of Justice, Office of Justice Programs. Ficheiro de 3,74 MB em formato PDF (49 p.).
330			_aA method for cataloguing and comparing the land impressions of bullets using readily available commercial instrumentation and software is described. The analysis involved a comparison of the locations of the prominent features of the land impression topography in much the same way that firearms examiners in California use consecutive matching striae except they were determined from the reconstruction of the surfaces by confocal microscopy. The database that was used to test the method contained 1686 land impressions fired from Beretta M9/92 pistols and was supplemented with additional random-simulated data to a total of 90,000 bullets. 232 of the 281 scanned bullets were duplicate firings, that is there were pairs of bullets fired from 116 guns and without excluding any bullets because of the quality of the impression marks over 60% of the duplicate firings were identified before a false positive match occurred.
606			_aBASE DE DADOS _9227272
606			_aBALÍSTICA _9320585
606			_aARMA DE FOGO E MUNIÇÕES _9343053
606			_aESTADOS UNIDOS _9334103
700			_aCHU _bAshley _919179
701			_aREAD _bDavid _9357800
701			_aHOWITT _bDavid _979026
955			_xOferta