HOMICIDE SCENE PHOTOS

Using Scaled Digital Photo (.bmp) rectification
(using a Sony 2.1 mega pixel camera)

Shown here is a partial 3D side view of a occupied structure with bullet holes identified using a ‘ + ‘ shape.  In most cases, these and other significant measurements are necessary to completely portray, relevant physical evidence off a Vertical plane.

Pictured here is a digital photo of the structure itself.  Most of the bullet holes are visible in the lower right section of the front of this dwelling, above the gray cement block.

Measurements taken by hand, indicated a distance of 1.29 feet between the two indicated bullet holes.

Following steps outlined here in another Topic, the Investigator would zoom in and move yellow “grip” boxes precisely over the point where the hand measurements were made.

In the Scaled Photo ‘Properties’ dialog box found at the screen bottom, the hand measured distance, “L”, is entered as shown – then reflected on screen.

Lastly, shown here are a series of important dimensions taken directly from the digital photograph (.bmp) imported into the software. 

This is a very time efficient, accurate and safe method for documenting another dimension of information off a Vertical plane.  

Time to import photo, change ‘scale’ factor to a known distance, and complete the above measurements = under 10 minutes.  At all Crime Scenes, photographs of some nature are taken.  Pics can be digitized and saved in .bmp format for importation into the software. 

This process permits DOUBLE USE of one necessary process for documenting the scene, photographs and measurements.

Measurements all precise to the accuracy of a steel tape (50 deg. F), and/or ‘snapping’ to evidence points if using suitable CAD software.

This method helps to prevent exposure to the Investigator of undetected bio-hazards/matter, and other situations associated with this nature of incident.

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