02067nam a2200193   4500001000700000100004100007101000800048200027500056210007900331215002000410300021200430330102300642606001601665606002901681606003801710606003201748606002701780710006601807393196  a20150416d2013       y0pory50      ba  aeng  aAn empirical study to improve the scientific foundation of forensic firearm and tool mark identification utilizing consecutively manufactured Glock EBIS barrels with the same EBIS patternbRecurso eletrónicoefinal reportfMiami-Dade Police Department Crime Laboratory  a[Rockville, MD]cNational Criminal Justice Reference Service (NCJRS)d2013  a1 CD-ROMd12 cm  aThis document is a research report submitted by the Miami-Dade Police Department Crime Laboratory to the U.S. Department of Justice. NIJ Award nr. 2010-DN-BX-K269. Ficheiro de 1,54 MB em formato PDF (51 p.).  aExecutive summary. Introduction. Purpose goals and objectives. Review of relevant literature. Scientific scrutiny. Ruger consecutively manufactured gun barrels. Related research. Polygonally rifled barrels. The Miami Barrel – Enhanced Bullet Identification System (EBIS). Research design and methods. Research questions. Research hypotheses. Target population. Eligibility – Inclusion criteria. Accessible population. Sampling plan & setting. Instrumentation. Data collection methods. Data coding. Descriptive analysis. Data analysis methods. Definitions. Confidence interval. Error rate. Manufacturing process of EBIS barrels. Internal validity strengths. Internal validity weaknesses. External validity strengths. External validity weaknesses. Results. Instrument parameters. Main analyses. Additional analyses. Inconclusive results. Summary of results. Conclusions. Limitations. Recommendations for future research. Acknowledgments. Dissemination of research findings. References. Appendix A: Survey instrument.  aBALÍSTICA  aMARCAÇÃO DE OBJECTOS  aIDENTIFICAÇÃO DE ARMA DE FOGO  aARMA DE FOGO E MUNIÇÕES  aANÁLISE LABORATORIAL  aESTADOS UNIDOSbMiami-Dade Police Department Crime Laboratory