As previously discussed, Laser Scanning technology is transforming both forensics and surveying and appears to be a near-revolutionary game changer. Micky Gilbert, founder of Gilbert Engineering, is no stranger to forensic work. Gilbert is one of the top experts in the country, and his company has been surveying and reconstructing accident scenes for more than 10 years.
“When an attorney needs an accident reconstruction,” said Accident Research Specialist Doug Yanda, “we need accurate measurements. At scenes, we’ve been using total stations for the last few years to document critical points. At a rollover, this would be things like scratches, even shallow scratches, yaw marks, impact points and debris that police don’t pick up.”
Working with a total station was necessarily cumbersome, and required searching for small marks in the roadway and taking separate shots of each. Since Gilbert Engineering crews typically arrive on the scene 12-18 months after the actual accident, it is not always obvious which marks are important. Laser scanning has changed that, offering two significant advantages: 1) Scanning gathers everything, even shallow gouges, so scene specialists don’t have to worry about missing anything during the scene survey, and 2) The scanner works quickly so you don’t have to decide which evidence is significant to gather at the scene — you can just gather it all!
Scanning is being adopted at a steady pace in most sectors of engineering, but in the narrow niche of forensic measurement it appears to be a near-revolutionary game changer. One big reason is that the sheer mass of data gathered, which is viewed as something of a handicap by many surveyors and engineers, is a nearly indispensable advantage for those trying to ferret out the reasons for a collapse, a rollover, an explosion or other catastrophe. And once you’ve had access to all the data you’ll ever need, it’s hard to go back — especially when your opponent in a courtroom may well have access to all that data as well. At a trial, the side with the best information is likely to win the day.
And the indisputable advantages of scanning, speed and accuracy, are also a big help in this high-stakes field. It seems that this new technology has already become an indispensable component of the forensic scientist’s toolkit.
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