Forensic Engineers and Consultants

Tag Archive: ACTAR

  1. Why investigators should have “Scaled Diagrams” of scenes?

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    When it comes to diagramming a crash scene, there are several methods to accomplish the task. Forensic Mapping, (locating, positioning, and documenting the evidence of a collision scene to scale) is essential to having the answers to the questions “Who, What, Where, When, and Why?”. Photographs do a great job showing what the investigators saw post collision; yet they lack scale and the ability to describe pre-collision movement. Having a computer aided diagram (CAD) of the collision scene goes much further than the pictures can; here is why.

    basic intersectionA scale diagram gives the full overview of a collision scene from either a 2D or 3D point of view. Being able to see how things lined up, how they came together and how they parted helps explain the events within a crash. When a scene can be viewed from top down or any angle, that helps relay the facts. The investigator, judge, or jury will get (more…)

  2. Are 10 Minutes Worth the Risk?

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    Before retiring as a S.C. State Trooper, and to this day, people routinely ask me, “How fast can I go before I get a speeding ticket?” Let me start by saying one mile per hour over the speed limit can subject you to a speeding ticket. While different officers have different standards, it is easier to talk your way into a ticket than to talk your way out of one. So, much like the number of licks to get to the center of a Tootsie Roll Tootsie Pop, the world may never know an exact answer to how fast you can go over the posted limit without a citation. A better question is ‘What is the benefit of exceeding the posted limit?’ (more…)

  3. Piecing it Together…Traced Evidence

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    In the field of forensic investigations of traffic collisions, it can be repeated over and over that little things matter. It’s the details that align the facts to describe the event and answer the questions about the crash. Sometimes those details are simple, and they are often overlooked. The damage sustained by a vehicle involved in an accident tells a reconstructionist a lot. Your collision reconstruction could benefit from mapping the damage profiles of the involved vehicle(s) to assist in answering questions about the incident. (more…)

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