Motivation – To explore the domain of crime scene examination as a form of distributed cognition and naturalistic decision making and to inform design of novel technologies. The ‘digitisation’ of Crime Scene Examination is an ongoing activity throughout the world. This process involves the use of portable computers to record scene details and prepare reports, the use of digital photography to c...

background:the present study aims to present a new method to trace narcotics in the solution extracted from dried urine stain left on cotton fabric. material and methods:narcotic substance was traced in the 50 samples through two methods. in the first method, samples were directly examined through thin layer chromatography (tlc). in the second method, a piece of cotton fabric was soaked in a be...

In this paper we provide a study about crime scenes and its features used in criminal investigations. We argue that the crime scene provides a large set of features that can be used to corroborate the conclusions emitted by the experts. We also propose a set of features to classify the violent crime considering two classes: attack from inside or outside of the scene. The classification stage is...

This article examines a number of critical issues associated with the collection of forensic evidence at the crime scene. It argues that the crime scene is one of the most crucial aspects of an investigation and that the scene of the crime is where good forensic science begins. The article begins by demonstrating that high quality and useful evidence leading to accurate and fair criminal justic...

This paper is focused on two main topics: crime scene reconstruction, based on a geomatic approach, and crime scene analysis, through GIS based procedures. According to the experience of the authors in performing forensic analysis for real cases, the aforesaid topics will be examined with the specific goal of verifying the relationship of human walk paths at a crime scene with blood patterns on...

OBJECTIVE The strategies of novice and expert crime scene examiners were compared in searching crime scenes. BACKGROUND Previous studies have demonstrated that experts frame a scene through reconstructing the likely actions of a criminal and use contextual cues to develop hypotheses that guide subsequent search for evidence. METHOD Novice (first-year undergraduate students of forensic scien...

In this paper, we present a framework for digital forensics that includes an investigation process model based on physical crime scene procedures. In this model, each digital device is considered a digital crime scene, which is included in the physical crime scene where it is located. The investigation includes the preservation of the system, the search for digital evidence, and the reconstruct...

This paper presents work on text-based photograph indexing and retrieval for crime investigation, an application domain where efficient querying of large crime-scene photograph databases is of crucial importance. Automating this task will change current police practices considerably, by bringing ‘intelligence’ to crime support information systems. The prototype presented, goes beyond common app...

1 Currently, a series of promising new tools are under development that will enable Crime Scene Investigators (CSIs) to analyse traces in situ during the crime scene investigation or enable them to detect blood and provide information on the age of blood. An experiment is conducted with thirty CSIs investigating a violent robbery at a mock crime scene to study the influence of such technologies...