02408nam a2200241 4500001000700000090001100007100004100018101000800059200026100067210007900328215002000407300014100427330125600568606003301824606002301857606003701880606003001917606003001947700003001977701003002007955001102037995011802048393957 a393957 a20160530d2014 y0pory50 ba aeng aInterpretation of ignitable liquid residues in fire debris analysisbRecurso eletrónicoeeffects of competitive adsorption, development of an expert system and assessment of the false positive/incorrect assignment ratefJ. Graham Rankin, Nicholas Petraco a[Rockville, MD]cNational Criminal Justice Reference Service (NCJRS)d2014 a1 CD-ROMd12 cm aResearch report submitted to the U.S. Department of Justice, Award Number: 2010-DN-BX-K272. Ficheiro de 6,93 MB em formato PDF (153 p.). aTitle page. Abstract. Executive summary. Introduction. Statement of problem. Statement of rationale for the research. Effect of substrates. Development of an expert system. Determination of error rates. Ignitable liquid pour patterns. METHODS: Competitive adsorption effects on fire debris analysis. Expert system development. Assessment of false positive rates and incorrect classification. Assessment of error rates for expert systems. Challenge samples for expert system. Ignitable liquid pour patterns. Small scale test burns. Sampling and extraction. Large scale test burns. Analysis. RESULTS: Effect of substrate on E1618. Variation with percentage charred. E1618 expert system development and graphical user interface. Challenging the expert system with spiked substrate samples. Determination of error rates by fire debris analysts. Ignitable liquid pour patterns. CONCLUSIONS. Substrate effects. Expert system. Error rate study of fire debris analysts. Ignitable liquid pour patterns. Implications for policy and practice. Implications for further research. Acknowledgements. References. Dissemination of research findings. Appendix 1: R-scripts used for analysis and GUI construction. Appendix 2: Expert system results for unknown samples. aPRODUTO INFLAMÁVEL9343931 aINCÊNDIO9243828 aANÁLISE DE VESTÍGIOS9320649 aCIÊNCIA FORENSE9321508 aQUÍMICA FORENSE9343048 aRANKINbJ. Graham9358109 aPETRACObNicholas9350421 xOferta 104PJCD_258_00000000000000052022-06-066PJCD2589426505aPJcPJfPJ1CD258_38kPJCD258n2022-06-06o0rMOxOferta