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The processing of firearms during investigation of a crime scenePillay, Povendran Dorasamy 31 May 2008 (has links)
The study was conducted with the intention of identifying the current procedure
employed by investigators for processing firearms evidence at a crime scene. The
researcher identified shortcomings which prevent firearm evidence being found to be
inadmissible in criminal proceedings. The researcher also analysed other aspects
relating to the processing of firearm evidence at a crime scene, namely: Locard
principle, identification, individualisation and physical integrity.
In order for investigators to be successful in their investigation of cases involving
firearms, it is imperative for investigators to have a clear understanding of the basic
concepts surrounding firearm evidence processing. It is the strong belief of the
researcher that because of improper handling, contamination and lack of integrity
pertaining to firearm evidence, such evidence is being found to be inadmissible in
criminal proceedings. This negative impact has a roll over effect on the conviction
rate for serious crime. / Criminology and Security Science / M. Tech. (Forensic Invesigation)
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Time-dependent effects of human blood on the microscopic comparison of fired bulletsArendse, Wayne E. 31 May 2008 (has links)
This dissertation consists of five chapters, each of which focuses on various aspects of the forensic discipline of Firearms and Toolmarks. This dissertation for the most part attempts to highlight the exposure of projectiles to blood and the degradation over time of the fine detail, which is necessary for microscopic examination. This study should be of interest to students and qualified role-players in forensic science, the criminal justice system, the law community and the general population globally.
Chapter 1 identifies the research problem and the necessary steps that were taken to ensure that the research methodol.ogy applied is relevant and reliable. Chapter 2 focuses on various factors that have to be considered in damage to bullets and investigation procedures that should be followed to ensure that physical evidence is preserved for submitting to a forensic science laboratory.
Chapter 3 investigates the degradation effects of fired bullets exposed to various materials in a laboratory environment and the timelines associated with the degradation effects. Chapter 4 evaluates the examination procedures for fired bullets and the contributing factors that may influence the striation marks on bullets needed for microscopic examination. It also examines the scientific method used for firearm identification, and explores the admissibility of physical evidence in a court of law. The final chapter, Chapter 5 discusses the findings and recommendation of this research study. / Criminology / M. Tech. (Forensic Investigation)
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Parametrizace vzniku kaverny náhradních materiálů u normované a speciální vojenské munice / Parametrization of substitute material in caverns standard and special military munitionsMucha, Pavel January 2014 (has links)
Title of thesis: Ballistic cavity origin characterisation; auxiliary materials of a standardised or a special military ammunition. Aim of thesis: The goal of this work is to provide a regularising framework suggesting structural changes of the auxiliary materials in the impact zone of the various ammunition. Methods: A ballistic experiment based upon the piercing test of various ammunition types. For these tests different barrier materials were used (e.g. glycerine, soap, ballistic gel). A comparative study of the various physical aspects of the cavities was exercised. Several diagnostic methods such as dimensions verification, water volume measurement, projectile speed radar check, computer tomography or the high speed camera were used to determine the secondary cavity specifics. Results: This thesis identified several key parameters determining projectile behaviour in the auxiliary materials. The major determinants were: speed, position or homogeneity of the projectile on the impact. However the major parameter defining the "injury level" was the concluded that the highest Injury level has the prohibited "fragmentation effect ammunition". On the other hand it was pointed out that so called "Black Mamba" projectiles have lower injury effect, although manufactore claims otherwise. Key words:...
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Indicadores do método de Rorschach para avaliação da maturidade emocional para porte de arma de fogo / Rorschach method\'s indicators to evaluate emotional maturity of handgun license candidatesPellini, Maria Cristina Barros Maciel 04 October 2006 (has links)
O objetivo deste trabalho é estabelecer indicadores do Método de Rorschach, avaliado segundo a proposta de Aníbal Silveira (1964/1985), para a avaliação psicológica exigida na lei para a concessão do porte de arma de fogo. A amostra foi composta por 150 sujeitos do sexo masculino, de 19 a 51 anos, divididos em três grupos: um grupo controle (GC) extraído da pesquisa de Coelho (2000), um grupo normativo. O segundo grupo (GPA) constituiu-se de 50 candidatos ao porte de arma de fogo para o exercício da função na Guarda Civil de um município de São Paulo e o terceiro, por 50 presidiários (GPR) com histórico de violência e crimes praticados com o uso de arma de fogo e que fizeram parte da pesquisa de Morana (2003). Os protocolos de Rorschach destes três grupos foram comparados quanto aos índices: Impulsividade (IMP), Adaptação à Realidade (RMI), Índice Conativo (Con), Resposta de Movimento (RM) e Resposta de Cor (RC). Para IMP o grupo controle apresentou valores próximos ao esperado, enquanto que GPA e GPR apresentaram esse índice diferente e acima do GC. O RMI não apresentou diferenças significantes entre os três grupos, mas sim nos índices que o compõem (%F+, %V e %A), tanto no total das respostas quanto para as respostas às pranchas monocromáticas e coloridas. O Índice Conativo não diferenciou nenhum dos três grupos, seja no total como nos conjuntos mono e color. Para a RM não foram encontradas diferenças significantes entre GPA e GRP porém houve diferença entre o grupo controle e os outros dois grupos. Quanto a RC, não houve diferenças entre o GC e o GPA, sendo que ambos apresentaram diferenças significantes com o GPR. Concluiu-se que tais indicadores, exceto o índice Conativo, podem discriminar sujeitos mais violentos os quais, por questões emocionais, poderiam ser contra-indicados para a concessão do porte de arma de fogo, contribuindo assim para a avaliação psicológica exigida daqueles que buscam o porte de arma. / The purpose of this work is to establish Rorschach Method\'s indicators, evaluated as proposed by Anibal Silveira (1964/1985), for psychological evaluation, a law requirement to a handgun license. The sample was composed by 150 men, aged between 19 and 51 years old, divided in three groups: one control group (GC) extracted from Coelho (2000) research with normal men. The second group (GPA) was composed by 50 candidates to a handgun license as Civil Guards of a town in São Paulo State and the third (GPR), composed by 50 prisoners who committed armed crimes studied in Morana\'s (2003) research. The Rorschach protocols of these three groups were compared regarding the following indexes: Impulsivity (IMP), Adaptation to Reality (RMI), Conative Index (Con), Movement responses (RM) and Color responses (RC). The control group presented expected values for the IMP, while GPA and GPR\'s were higher. There were no significant differences between the three groups regarding RMI index, but they were found in the indexes that compose it (% F, % V and % A), either in total responses, as in responses to monochromatic and colored cards. There were no differences between the three groups in the conative index, in total and in mono and color sets. To RM, no significant differences were obtained between GPA and GPR, but a difference was found between the Control Group and the two other groups. There were no differences between GC and GPA in the RC, but both presented significant differences related to GPR. We concluded that these indicators, except for the conative index, can discriminate violent individuals, who should not be approved to obtain a handgun license for emotional reasons. We conclude also that these indicators can contribute to psychological evaluation of handgun license candidates.
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Forensic Gunshot Residue Distance Determination Testing Using Identical Make and Model Handguns and Different Ammunitions.Hodges, Stanley Keith 03 May 2008 (has links)
The determination of how far a firearm was from a victim or target when it was discharged is a frequent request to crime laboratories. This determination requires test firing the firearm at various distances to compare gunshot residue patterns made during the test with patterns on the victim or target. Crime laboratories stipulate that the same firearm and ammunition used in commission of the crime must be used for this testing; however, little empirical evidence exists supporting this requirement. It was the purpose of this study to determine if there were any significant differences using different firearms and different ammunition in distance determination testing. The findings indicated that no significant differences occurred with different firearms but there were significant differences with different brands of ammunition.
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Awareness and Understanding of a College Active Shooter Crisis PlanWilliams, Christopher Brian 01 January 2017 (has links)
Gun violence on college campuses has gained the attention of campus leaders, leading to an active shooter policy and procedure development and implementation. There was little awareness within the campus leadership of a college in the Southeast United States on the college's active shooter policy and procedures. Guided by Coomb's crisis management plan model, the purpose of this case study was to explore how information was provided to students, faculty, and staff regarding how to respond to an active shooter on campus. Purposeful sampling was used to identify 16 participants (6 students, 5 faculty, and 5 administrator/staff) who were interviewed in person. Data analysis included content analysis for the documents and open and axial coding for the interview data, followed by identification of emergent themes. The outcomes included significant variations and inconsistencies among students, faculty, and staff regarding awareness and understanding of how to respond to an active shooter crisis. Overall, students demonstrated the least awareness and understanding. Based on the findings, a project was developed consisting of recommendations to augment the current active shooter procedures and to develop a comprehensive active shooter policy. The results of the study could promote increased awareness, understanding, and preparation for students and employees of technical and community colleges regarding an active shooter policy and procedures, thus increasing safety and confidence on campus.
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Private Sicherheitsdienste und Waffenrecht /Storch, Thomas, January 2001 (has links) (PDF)
Univ., Diss.--Bielefeld, 2000. / Literaturverz. S. 263 - 276.
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Time-dependent effects of human blood on the microscopic comparison of fired bulletsArendse, Wayne E. 31 May 2008 (has links)
This dissertation consists of five chapters, each of which focuses on various aspects of the forensic discipline of Firearms and Toolmarks. This dissertation for the most part attempts to highlight the exposure of projectiles to blood and the degradation over time of the fine detail, which is necessary for microscopic examination. This study should be of interest to students and qualified role-players in forensic science, the criminal justice system, the law community and the general population globally.
Chapter 1 identifies the research problem and the necessary steps that were taken to ensure that the research methodol.ogy applied is relevant and reliable. Chapter 2 focuses on various factors that have to be considered in damage to bullets and investigation procedures that should be followed to ensure that physical evidence is preserved for submitting to a forensic science laboratory.
Chapter 3 investigates the degradation effects of fired bullets exposed to various materials in a laboratory environment and the timelines associated with the degradation effects. Chapter 4 evaluates the examination procedures for fired bullets and the contributing factors that may influence the striation marks on bullets needed for microscopic examination. It also examines the scientific method used for firearm identification, and explores the admissibility of physical evidence in a court of law. The final chapter, Chapter 5 discusses the findings and recommendation of this research study. / Criminology and Security Science / M. Tech. (Forensic Investigation)
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El uso táctico de las armas de fuego en las guerras civiles peruanas (1538-1547) / El uso táctico de las armas de fuego en las guerras civiles peruanas (1538-1547)Espino López, Antonio 12 April 2018 (has links)
During the civil wars between the conquistadores, Peru was a field of experimentation for the new military tactics developed in Europe following the introduction of portable infantry firearms. This article suggests that, however, the techniques introduced by Francisco de Carvajal, Gonzalo Pizarro’s fieldmaster, predated those used in Europe by several decades, especially regarding the rate of fire in combat. In the battle of Huarina (1547), Carvajal used his own method to ensure his infantry’s ability to deliver heavy fire. The technique relied on adequate training and on the number of weapons each soldier carriedin battle, rather than on the number of men. / Las nuevas tácticas militares desarrolladas en combate en Europa a raíz de la introducción de las armas de fuego portátiles en la infantería también se experimentaron en el Perú en el transcurso de las guerras civiles entre los conquistadores. En el presente artículo, postulo que Francisco de Carvajal, maestre de campo de Gonzalo Pizarro, se adelantó en varios decenios a las tácticas empleadas en Europa a la hora de sostener la cadencia de fuego en batalla. Así, en la batalla de Huarina (1547), Carvajal consiguió desarrollar su propio método para asegurar un nutrido fuego de su infantería, el que dependía, más que del número de hombres, del entrenamiento de los mismos y de la cantidad de armas que cada uno portaba en batalla.
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Organizace a vybavení vojska v 15. století: paralelní vývoj ve Francii, Burgundsku a střední Evropě / Organization and Equipment of the army in 15th century: parallel development in France, Burgundy and in the Central Europe.Biederman, Jan January 2016 (has links)
Organization and equipment of the army in 15th century: parallel development in France, Burgundy and in the Central Europe The form of the military organization, providing of food supply, technical possibilities and conditions of transport and, of course, a character of armament had share in qualities of the army during the late Middle Ages as well as in the other eras. In this context were important contemporary technical possibilities of the weapon production, commerce of weapons and last but not least also the attitude to the progressively developed group of weapons - firearms. Purpose of this thesis is comparison of aforementioned themes context between the middle Europe with the emphasis on Bohemian lands and francophone west Europe, presented by the kingdom of France both with the duchy of Burgundy. Final aim of this effort is searching of different specifics in the studied regions together with the detection of identical trends and influences. Keywords: military organization - food supply - weapons production and armament - firearms - transport
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