This study sought to explore the significance of efficient murder crime scene processing. Data were collected through semi-structured interviews conducted with investigators who investigate murder cases in the Nyanga South African Police Service (SAPS) cluster in the Western Cape, to stimulate knowledge of the significance of efficient murder scene processing. A literature study relating to aspects of crime scene management and crime scene processing was conducted. From the results of this research, it appears that participants did realise the significance of efficient murder scene processing. It is, however, apparent that they experienced challenges and shortcomings with regard to efficiently processing murder scenes. Reasons for this are inexperienced investigators, overload of murder scenes to investigate, lack of human resources, and lack of cooperation between investigators and crime scene experts. The study makes recommendations that could assist the Nyanga SAPS cluster in improving the processing of murder scenes. / Police Practice / M. Tech. (Forensic Investigation)

The researcher attempts to establish the significance of video evidence analysis in the investigation of murder cases against the police. The evidence obtained could be crucial and admissible in court and ultimately resulted in the successful prosecution of an accused person. In order for investigators to conduct an effective investigation, it is important that they become familiar with the application of video evidence, its purpose, benefits and shortfalls. In order to achieve the intended goals and objectives of video evidence, the investigators should know how to collect, package, process and analyse video evidence. The clarification and processing of the crime scene of video evidence as well as the identification of a suspect at the scene of crime is very much important and without video evidence it would be difficult to convict an accused person in a court of law. / Police Practice / M. Tech. (Forensic Investigation)

The research attempts to establish how modus operandi can be used to identify suspects in burglary cases. To conduct effective investigation, it is important for investigators to be familiar with the concept modus operandi, its elements, its influence and its values. To achieve the goals and objectives of the practice of modus operandi, investigators must know how to apply modus operandi, what the situational factors are during a criminal act, and how to use it as technique to identify suspects in burglary cases. The direction by implication and clarification of the crime situation is hardly possible without the determination of the identity of the perpetrator or suspect of a criminal act. The recognition of the modus operandi system as any form of evidence gathering is of outmost importance. / Criminology and Security Science / M.Tech. (Forensic investigation)

The aim of this research was to evaluate the role of the first responder at the crime scene, focusing on visible policing members at Ivory Park Police Station situated in Gauteng Province. A qualitative approach was employed in which the multiple data sources of literature, documents (SAPS directives) and structured interviews were compared in an attempt to substantiate the research findings. The interviews were conducted with visible policing members who attended to crime scenes as first responders and with detective branch commanders. This research discussed a number of key concepts: crime scene, criminal investigation, first responder, Locard’s Principle and physical evidence. It explained that criminal investigation is a logical and systematic process of gathering, locating and collecting evidence and the subsequent apprehension of perpetrators of crime in an attempt to secure a conviction. The objectives of criminal investigation are to detect crime; locate and identify possible offenders; gather, collect and process evidence; arrest offenders; recover stolen property; and bring the perpetrators before court to secure a conviction. The basic purpose of investigation is to prevent crime. Locard’s Principle, also known as the “the contact theory”, is that every contact leaves a trace. This research also suggests the processes that must be followed when crime is reported, the meaning of preliminary investigation, and the basic considerations during preliminary investigation, the main mistakes made by the first responder and the solutions to the identified mistakes. It is imperative that visible policing members familiarise themselves with the purpose of investigation and develop an understanding of the term “Locard’s Principle”, the process that must be followed when crime is reported, the basic considerations in the preliminary investigation of a crime and the main mistakes made by the first responders at the scene of crime, as these carry significant weight in the execution of their daily duties. These must be understood by the first responder as they contribute to the successful investigation and prosecution of offenders. This research hopes to assist in securing convictions and decreasing the number of repeat offenders who commit crimes. / Criminology and Security Science / M.A. (Criminal Justice)

This study seeks to determine the effectiveness of detectives in the investigation of housebreaking cases in the Secunda Cluster. Key theoretical concepts such as criminal investigation, housebreaking, evidence and effectiveness, are defined and explained. The objectives of criminal investigation are discussed in detail. The elements of housebreaking are also explained in detail. The researcher`s findings were that the research questions were answered by all the participants, who had more than adequate knowledge on the concepts, and were sometimes in line with the literature. The researcher noted the problems identified by the participants and came up with some solutions. On the basis of the findings of this research, recommendations are made to have specialised training in the investigation of housebreaking cases. The clarification and application of the various investigation techniques to improve the effectiveness of the investigation of housebreaking cases were also recommended. Investigators should continually receive refresher in-service training on new techniques being used by criminals in committing residential housebreaking cases. / Police Practice / M. Tech. (Forensic Investigation)

The main purpose of this research is to assess the utilisation of the Local Criminal Record Centre (LCRC) in rape crime scenes. First responders need to attend to the crime scene and secure it as soon as possible. Other role-players such as the Family Violence, Child Protection and Sexual Offences (FCS) investigator and LCRC fieldworkers should be activated by the first responder to the rape crime scene. Ideally, role-players should be activated as soon as the case is reported to the first responder. Members of the LCRC are responsible for recording the crime scene by taking photographs, making video recordings and drawing sketch plans of the scene. The LCRC is also responsible for processing the rape scene for physical evidence such as fingerprints, blood, hair, semen and saliva. The crime scene is a major source of information as far as physical evidence is concerned. The body of the victim is also a major source of physical evidence. It is therefore essential to have the rape victim examined by a medical examiner and the crime scene to be processed by the LCRC fieldworker timeously, in order to secure physical evidence that could be used to individualise a suspect. The discovery of physical evidence could place the suspect on the scene of crime and link such suspect to the crime committed. The physical evidence could also assist in corroborating the version of events from the victim. The physical evidence could also be used to exclude suspects as well. This dissertation seeks to highlight the importance of having the LCRC processing rape crime scenes for physical evidence and to emphasise the responsibility of the first responders to activate LCRC fieldworkers to process the scene of incident timeously, in order to maximise physical evidence recovery. / Criminology and Security Science / M. Tech. (Forensic Investigation)

In this research, the role of forensic science with the use of forensic photography in the crime scene reconstruction process was evaluated. The researcher identified how SAPS detectives and Crime Scene Technicians (CST‟S) are currently conducting crime scene reconstructions by adopting forensic photography; furthermore, other methods in which forensic photography could be used to conduct crime scene reconstructions were explored. The researcher made use of an empirical design, as the information available on the research topic was limited. The empirical design, together with a qualitative research approach, allowed for real-life observations. The simple random sampling method was used to select 20:10 partcipants for this research as follows: Ten (10) detectives that investigate murder cases, and another ten (10) CST‟S that conducted crime scene reconstructions in the Durban Policing Area (DPA). Data was obtained using qualitative data collection methods that included a literature study and interviews. The findings of this research provide that the value of forensic science, as well as the use of forensic photography in the crime scene reconstruction process, was established. Evidently, detectives and CST‟S are not doing everything possible to reconstruct murder crime scenes. For recommendation, this research suggests that SAPS detectives and crime scene technicians (CST'S) adopt the fundamentals of forensic science when reconstructing murder crime scenes. / Criminology and Security Science / M. Tech. (Forensic Investigation)

Indiana University-Purdue University Indianapolis (IUPUI) / In crime scene investigations it is necessary to capture images of impression evidence such as tire track or shoe impressions. Currently, such evidence is captured by taking two-dimensional (2D) color photographs or making a physical cast of the impression in order to capture the three-dimensional (3D) structure of the information. This project aims to build a digitizing device that scans the impression evidence and generates (i) a high resolution three-dimensional (3D) surface image, and (ii) a co-registered two-dimensional (2D) color image. The method is based on active structured lighting methods in order to extract 3D shape information of a surface. A prototype device was built that uses an assembly of two line laser lights and a high-definition video camera that is moved at a precisely controlled and constant speed along a mechanical actuator rail in order to scan the evidence. A prototype software was also developed which implements the image processing, calibration, and surface depth calculations. The methods developed in this project for extracting the digitized 3D surface shape and 2D color images include (i) a self-contained calibration method that eliminates the need for pre-calibration of the device; (ii) the use of two colored line laser lights projected from two different angles to eliminate problems due to occlusions; and (iii) the extraction of high resolution color image of the impression evidence with minimal distortion.The system results in sub-millimeter accuracy in the depth image and a high resolution color image that is registered with the depth image. The system is particularly suitable for high quality images of long tire track impressions without the need for stitching multiple images.

This research is concerned with the nature and extent of problems experienced by detectives in the collection, processing and utilisation of crime information for the investigation of crime. The problems gave rise to poor detective performance. The development of information-led policing offers an alternative to the traditional ”reactive” model of investigation of crime. Information-led policing advocates the targeting, gathering, analysis and dissemination of information which is used to inform decisions about the prioritisation of problems and allocation of resources to address the problems (Cope, as quoted by Alison, 2005:93). The purpose of this study is to determine the strengths and weaknesses in the collection, processing and utilisation of crime information at the Rustenburg Detective Service, to find new knowledge that can improve the situation, and to apply the found knowledge to enhance the performance of detectives. / Criminology / M.Tech. (Forensic Investigation)

The main focus of this dissertation was to evaluate the evidential value of crime scene investigation in child rape cases. There are two kinds of crime scenes that needed to be processed in sexual crimes. Firstly is the location of occurrence and secondly is the victim's body. The crime scene is in any crime the major source of information if correctly approach, but even more so in a child rape investigations. A few crimes rely so heavily upon physical evidence as does the crime of rape. It is therefore essential that all rape investigators have first-class knowledge of proper crime scene investigation methods and techniques. Since crime scenes not properly protected or process may fail the investigation in court and as a result see the suspect acquitted. The following physical evidence could link and assist the investigator to individualise the suspect during thorough crime scene investigation; body fluids such as semen, blood, saliva. Other evidence of physical nature commonly found at crime scenes includes fingerprints, footprints (impression evidence); soil evidence, hair evidence, and anything in general handled or left behind by the rapist at the crime scene. This dissertation strives to provide the Investigator with answers on, how, where, and when to process the crime scene. / Criminology / M.Tech. (Forensic Investigation)