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Crime Scene

The Value of Crime Scene and Sititation by Forensic Psychologists and Psychiatrists

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Abstract

Site visits and crime scene visitation by forensic psychologists and psychiatrists may enhance the accuracy and credibility of their forensic work in criminal, civil, and other important contexts. This ethically sound technique of after-the-fact data collection and verification offers numerous potential benefits to the forensic mental health professional: clarifying the subject's actions, assessing the reliability of witness reports, identifying contextual determinants of behavior, and more fully illuminating subject motivation and decision-making. Limitations and suggested guidelines for conducting site visits are offered. Guidelines include preplanning, arranging for an informed guide to accompany and narrate the visit, and conducting the site visit prior to forensic examinations....

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Special Aspects of Crime Scene Interpretation and Behavioral Analysis

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1. INTRODUCTION

Crime scene analysis may lead to different ways of interpretation and classification of a crime investigated. Additional information can be obtained by methods of behavioral analysis where an overall view of the criminal case is provided and conclusions regarding the underlying motive(s) can be drawn (1–10). Behavioral analysis in unsolved homicide cases is playing a more important role in the field of police work (11–13). The method of behavioral analysis was developed in the United States and further developed in different European countries in the late 1980s. Today, it is routine practice for police agencies to perform analytical procedures in unsolved homicide cases in close cooperation with experts from different fields, such as psychiatry, psychology, and forensic pathology. This analytical process should not be confused with offender profiling. The forensic pathologist investigating the death scene and examining the victim’s body will most often contribute valuable information to a careful...

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Bullet Trajectories at Crime Scenes

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Recommended Procedures for Documenting Bullet Trajectory

Crime scenes involving the use of firearms present unique challenges for the crime scene investigator, but using relatively simple techniques it is often possible to reconstruct the events that give some indication as to what occurred during the actual discharge of the weapon. By this I mean it is possible to determine the actual path or trajectory of the bullets, and using this information, determine the location of the shooter.

A number of factors must be taken into account including the position of cartridge cases ejected from automatic and semi-automatic weapons. It is therefore essential that the exact position of spent casings be marked and documented before any other investigative procedures are followed.

Document (Photograph & Sketch) Positions of Spent Cartridge Casings

Photography is the first necessity so it is imperative that the crime scene be afforded absolute security. Until spent cartridges are properly recorde...

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Because the investigation of cold cases is usually an arduous and time-consuming task, most law enforcement agencies in the United States are not able to dedicate the resources necessary to I u iu u IIsupport the cold case investigation process. However, when those cases are fully pursued and prosecuted, they often result in convictions and lengthy prison terms. Cold Cases: Evaluation Models with Follow-up Strategies for Investigators, Second Edition saves law enforcement time by providing detailed guidelines for determining if a cold case is solvable, and if so, how to organize, manage, and evaluate the investigation. It also provides techniques for developing investigative strategies to complement the evaluation process and resolve the crime.

This second edition features a new revised model and methodology for investigating cold cases suitable for all police and public safety agencies—large or small, domestic or international. This new model is more expeditious and convenient for departments that have less...

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Forensics With Sceneworks

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INTRODUCTION TO THE CONCEPT

We all have experienced the immense power of a text driven search in the internet via search engines: once we know the right keyword, the search-engines will "find it all", BUT if we don't ...., the screen stays empty.

On a smaller scale: is part of your job description to be a shareholder in the process of crime scene investigation? If so, did you ever have to communicate results via "clever named" folders or file names?

Here's our background: as a manufacturer of high-end (full spherical) cameras, some of our customers in the past were indeed police-photographers. They used the camera to document crime scenes. They figured: "... see the glas of water there. I actually do know that we have found a fingerprint on it. Wouldn't it be great to allow everyone in our team to immediately access the PDF with the fingerprint analysis by a simple mouse-click on the glass?...

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Scene-of-Crime Analysis by a 3-Dimensional Optical Digitizer: A Useful Perspective for Forensic Science

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Abstract

Analysis and detailed registration of the crime scene are of the utmost importance during investigations. However, this phase of activity is often affected by the risk of loss of evidence due to the limits of traditional scene of crime registration methods (ie, photos and videos). This technical note shows the utility of the application of a 3-dimensional optical digitizer on different crime scenes. This study aims in fact at verifying the importance and feasibility of contactless 3-dimensional reconstruction and modeling by optical digitization to achieve an optimal registration of the crime scene.

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Amateur Versus Professional Does The Recovery Of Forensic Evidence Differ Depending On Who Assesses The Crime Scene?

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Abstract

Volume crime offences such as domestic burglary are commonly assessed for forensic opportunities by the first attending officer present at the scene. Conversely, less serious volume crime offences such as thefts from motor vehicles are very frequent and are routinely assessed for forensic opportunities by the victim talking to the police over the telephone. It is not clear whether this difference in attendance policy leads to differences in the types and quantity of forensic material recovered. The current study explored whether there was a benefit to evidence recovery for attended as opposed to non-attended assessments. Five hundred thefts from motor vehicles offences recorded by Northamptonshire Police (UK) between 14 January 2010 and 28 February 2011 were analysed; 250 were attended forensic assessments and 250 were non-attended assessments. Significant differences were found between the two scenarios, with attended assessments more likely to yield DNA, property and trace substance material. Conversely, fingerprints were more likely...

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