Forensic Engineers and Consultants

Tag Archive: injury investigation

  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. Danger Lurking in the Hot Tub

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    Several dangers involving the use of a hot tub (spa) may readily come to mind, such as the risk of shock or electrocution, or the risk of drowning for unsupervised young children.  Not so readily apparent is the effect of overheating the human body, or “hyperthermia”.

    Some individuals are more susceptible to the effects of hyperthermia, including the elderly, young children, and those in poor health.  The effects of hyperthermia, or overheating of the human body, cause direct responses such as headache, nausea, heat exhaustion, increased cardiac output, lethargy, confusion, heat stroke and unconsciousness.  The onset of hyperthermia is defined as being at 99.5° F; if the body temperature reaches 104° F, a life-threatening medical emergency exists.  (more…)

  3. Defective Vertical Baler Causes Serious Crush Injury to Operator’s Arm

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    I recently worked on an interesting case involving a box baler. An employee of a butcher shop put some empty cardboard boxes in a vertical box baler and pushed the control switch to compact the boxes. After the 30 by 60 inch platen weighing 851 pounds returned to its raised position, the employee reached into the open space above the bottom door on the baler and began to clear cardboard from the bale tie slots in the bottom of the raised platen. Suddenly, and without warning, the steel pin attaching the platen to the raised hydraulic cylinder rod failed. The heavy steel platen fell and crushed his arm which was outstretched over the baler door into the compaction space.

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  4. Commercial Gas-Fired Cookers Can Do More Than Burn

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    The first hazard that comes to mind when thinking about large scale ovens and steam kettles is burning or scalding injury. Carbon monoxide poisoning is just as dangerous but less understood, so oftentimes proper prevention methods are not followed. In the United States, this results in over 20,000 emergency room visits and over 400 deaths a year. Before we get to the case study and poisoning prevention methods, we need to know what CO is, where it comes from, and why it is poisonous. (more…)

  5. Hand and Finger Injuries from a Defective Snow Blower

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    Nearly everyone who lives in a snowy climate would agree that a gas powered snow blower beats a person powered snow shovel for clearing the sidewalk or driveway.  Shoveling heavy, wet snow causes injuries from back problems to heart attacks.  No wonder that gas powered snow blowers of all sizes are a popular item this time of year.  The larger ones may be ride-on types; smaller ones are typically walk-behind.  In either case there is an auger to gather the snow as the device moves forward and a bladed fan (or “blower”) to discharge it out of a chute to one side or the other.  (more…)

  6. Code Violations Are Root of Fatal Explosion

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    The design and installation of gas piping systems in homes and commercial buildings is guided by a set of regulations called NFPA 54 — the National Fuel Gas Code. The code, which establishes minimum safety requirements, is also used by forensic engineers to evaluate an explosion to determine cause and responsibility. (more…)

  8. Machine Safeguarding for an Imperfect Workforce: Humans.

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    Every day more than 12 people in the United States lose their lives in workplace injuries, according to U.S. Department of Labor data. In 2011, OSHA estimates, 3.3 million people suffered a workplace injury from which they may never fully recover. Two of the top ten most frequently cited OSHA standards that result in injuries and death are lockout/tagout and machine guarding. (more…)

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