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Forensic Mapping with Total Stations

"A total station is an optical instrument used in modern surveying and archaeology as well as by police, crime scene investigators, private accident reconstructionists and insurance companies to take measurements of scenes. It is a combination of an electronic theodolite (transit), an electronic distance meter (EDM) and software running on an external computer known as a data collector.

With a total station one may determine angles and distances from the instrument to points to be surveyed. With the aid of trigonometry and triangulation, the angles and distances may be used to calculate the coordinates of actual positions (X, Y, and Z or northing, easting and elevation of surveyed points, or the position of the instrument from known points, in absolute terms.

The data may be downloaded from the theodolite to an external computer and application software will generate a map of the surveyed area." -Wikipedia

Forensic mapping is often required to recreate a crime or accident scene or to verify that measurements taken at the time of an event are consistent. The data collected can be provided as a 2D or 3D drawing or even used to create a 3D animation or virtual model.


Robotic Total Station


Typical Site Survey

The survey data can be rather cluttered and difficult to interpret from a CAD package and therefore, it is beneficial to convert this into a simplified drawing .

Simplified 2D Drawing built from Total Station Data
The data obtained from a survey can be imported into other programs to make simple and effective 2D drawings that can be used for courtroom presentations.

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Crime Scene Recreation, 3D Demonstrative Evidence, Forensic Virtual Models, Forensic Photogrammetry, 3D Accident Recreation, 3D Crime Scene