forensic investigation Articles

  • Environmental forensics investigation

    Location: Vancouver, BC Owner: Confidential Description: Environmental forensics investigation ongoing to determine the source of chlorinated solvents (PCE, TCE, 1,1,1-TCA1,1,DCE) and 1,2-dichlorobenzene contamination at a site that has changed owners in the past 25 years. Advanced Forensic Techniques used include hydrolysis equation for ...


    By NovaTec Consultants Inc.

  • Forensic investigation of flexible pavements in Ohio

    This paper presents the results of a forensic investigation initiated by the Ohio Department of Transportation in 2006 to determine the reasons for differences in performance of flexible pavements in Ohio. Ten projects with average performance and ten projects with excellent performance were selected for study. Falling Weight Deflectometer and ride quality measurements were taken along all ...


    By Inderscience Publishers

  • Forensic engineering investigations of disasters: going 'beyond the widget'

    Forensic engineering is the use of engineering knowledge and techniques to create evidence for the legal system. Both litigation and regulatory systems use engineering evidence in making legal decisions. Forensic engineering plays a key role in investigating disaster scenarios. But commentators have described the investigatory focus on trivial proximate causes as the 'Widget' approach, where the ...


    By Inderscience Publishers

  • The use of portable and handheld Raman spectroscopy for forensic investigations

    The Raman technique is gaining widespread acceptance as an investigative tool for forensic applications. This article focuses on the use of portable and handheld Raman spectroscopy in the field of forensic science and illustrates it with real-world examples. The benefits of Raman spectroscopy are well recognized for the molecular identification of unknown molecular compounds and as a result the ...


    By B&W Tek

  • A rational approach for conducting highway pavement forensic investigations

    Forensic investigations of highway pavements are generally conducted to investigate premature failures, but there are other reasons for conducting them, such as understanding exceptional pavement performance. Although frequently conducted, research was needed to identify and evaluate current investigation practices, and to develop a rational process that considers relevant factors and provides a ...


    By Inderscience Publishers

  • Forensic engineering for machine foundations

    Machine foundations are dynamically loaded structures whose response depends on a number of parameters such as strength, stiffness, mass, damping, soil–structure interaction and fatigue. Performance–based designs and evaluation procedures are gaining popularity particularly with respect to structures that have been built using codal provisions existing a few decades back. Enhancement of knowledge ...


    By Inderscience Publishers

  • Methodology for Forensic Investigation of Potable Water Quality in Municipal Distribution Systems

    Abstract During routine regulatory potable water quality sampling in distribution systems related to the Total Coliform Rule, utilities can sometimes experience anomalous detections of total coliform bacteria and/or fecal coliform bacteria in the distribution system samples. Frequently, the regulatory-required retesting of the same sample locations reveals no detection of bacteria, and thus ...

  • Environmental forensics: courting science?

    Forensics and hydrology are two terms that may not seem to go together well. To the uninitiated, this combination may evoke images of the crime scene investigation that ensues when some patsy goes into the drink wearing cement overshoes. Rather, the term environmental forensics, essentially the parent discipline of forensic hydrology, has found its way into contemporary parlance owing to ...


    By Hargis + Associates Inc

  • Considerations in forensic examination of automotive systems

    Automotive forensic examination is the systematical analyses of failed automotive components in the pursuit of and the identification of the cause(s) or root cause(s) of the physical damage or other disablement done to vehicle by collision. It comprises a combination of science, experience and some art by using the laws of physics, mathematics, engineering, etc. mixed with the expert's real–world ...


    By Inderscience Publishers

  • Estimating ground motion levels in earthquake damage investigations: a framework for forensic engineering seismology

    Earthquake–resistant design matches performance targets of structures and facilities with defined levels of ground shaking. Structural failure in an earthquake may result from higher ground motions or from poor design and construction. In legal disputes in such circumstances experts are required to infer the ground–motion levels at the site, if there are no ground–motion ...


    By Inderscience Publishers

  • The (Environmental) Science of Investigation: Interactive Forensics Training Helps Professionals Solve Petroleum Contamination Cases

    When a site is contaminated with petroleum products, there are many questions. How did it happen? When did it happen? And, most importantly, who is responsible for paying to clean it up? This fall, Rutgers University’s Office of Continuing Professional Education (OCPE) will ...

  • Case study - NAPL forensics analysis at tank farm in Boston

    Ambient Engineering, Inc. (Concord, MA) used Sitelab to investigate and remediate a former tank farm along Boston Harbor contaminated by a large, subsurface plume of commingled diesel fuel and No. 6 fuel oil. Loading racks (above) are suspected to have contributed to most of the site’s contamination. Light Non Aqueous Phase Liquids (LNAPL) collected from 40 monitoring wells were tested ...


    By Sitelab Corporation

  • Parsing pyrogenic PAHs: Forensic chemistry, receptor models, and source control policy

    A realistic understanding of contaminant sources is required to set appropriate control policy. Forensic chemical methods can be powerful tools in source characterization and identification, but they require a multiple‐lines‐of‐evidence approach. Atmospheric receptor models, such as EPA's Chemical Mass Balance (CMB), are increasingly being used to evaluate sources of pyrogenic polycyclic ...


    By John Wiley & Sons, Ltd.

  • Forensic engineering applied to the analysis of a gas explosion in a residential building

    Present paper deals with the identification of the cause of an explosion in a hollow space positioned below a residential building as the result of welding operations. On field investigation clearly demonstrated that the explosion was due to the ignition of a flammable atmosphere in the basement of the building. Along the trial two hypotheses were brought to the judge: (a) explosion of an ...


    By Inderscience Publishers

  • A forensic study to differentiate two dissolved gasoline plumes at adjoining service stations

    Three gasoline service stations are present at a highway intersection in central New Jersey. In the mid- to late- 1980s, service station “B” began to notice large discrepancies in their gasoline inventory. The USTs were removed in 1988 and a significant release was discovered. Separate-phase gasoline, as much as 1.5 feet (0.5 m) thick was present on the water table for about an area ...


  • Consideration of human factors in investigations of structural failures

    Investigations of claimed structural failures often lead to conclusions based on structural factors including strength and serviceability. Typically, these conclusions are absolute, since they result from objective comparisons of results to limits prescribed by owners and/or governing agencies. Occasionally, however, the failure of a structure may be defined by human factors, which are more ...


    By Inderscience Publishers

  • Forensic evaluation of multiple cracking of a concrete test cell built over an open graded aggregate base

    In August 2011 a test cell of 6 inch thick concrete surfacing placed over of special open graded Limestone aggregate base predominantly 8 inches (203 mm) thick was constructed at the MnROAD research facility. The two layers overlaid an existing 6 inch (150 mm) of MnDOT non–drainable aggregate base that overlaid a clay/silt sub–grade. In July 2012, an extensive cracking pattern was observed. This ...


    By Inderscience Publishers

  • FORENSIC study at a Northern New Jersey service station: the mixing of old and new gasoline

    In 2000, a client purchased a gasoline service station in northern New Jersey. A few days after receiving possession of the property, he received a letter from a State regulatory agency informing him that an investigation surrounding a leaking waste oil UST was required. He was unaware that a waste oil UST had existed; automotive repairs were not part of his or the previous owner’s business ...


  • Fuselage metal fatigue in large commercial aircraft

    Details of a recent aircraft fuselage metal fatigue forensic analysis are presented. Different methods for determining total fatigue cycles are given and compared. The results of this investigation are placed in context with respect to all known catastrophic fatigue failures of commercial aircraft fuselages in the modern era. Keywords: metal fatigue, commercial aircraft, fatigue striations, ...


    By Inderscience Publishers

  • Minnesota I35W steel bridge collapse: lessons learned and challenges revealed

    This article discusses an independent investigation and associated forensic analysis of the old Minneapolis highway I35W Bridge that collapsed on 1 August 2007, which is based on a thorough examination of the original design drawings, a series of detailed 2D/3D finite elements computations of the bridge and the material evidences disclosed by National Safety Transportation Safety Board (NTSB) ...


    By Inderscience Publishers

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