The DGK Color Tools 4N6 forensic ruler evidence documentation tool (set of 5):

This forensic scale incorporates several features to assist forensic photography, crime scene evidence identification, and me...

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The DGK Color Tools 4N6 forensic ruler evidence documentation tool (set of 5):

This forensic scale incorporates several features to assist forensic photography, crime scene evidence identification, and medico-legal documentation of bite marks or skin injuries. Set of 5 double-sided 5" x 7" (127 x 178 mm ) disposable postcard weight paper cards. Includes instructions.

The double-sided DGK Color Tools 4N6 forensic ruler features multiple essential forensic photographer's tools:

Both sides have rulers (one side metric, one side inches) on the top and side, plus additional rulers on the inside of an L-shape. Multiple cross-hair perspective circles compensate for distortion that might occur from oblique camera angles. 8 step chromatic skin color scale for reference. 11-step gray scales assist the photographer in setting the correct exposure or density the photographic print or image. 18% gray area reflectance for white balancing.

Designed for both injury and bite mark documentation and crime scene photography:

The 4N6 features an American Board of Forensic Odontology (ABFO) type L-shaped ruler for accurate bitemark measurement and photography. Accurate to 1 mm or less. Cross hair circles for photogrammetry corrections. Space is provided for recording crime scene data on one side, and patient and injury data on the other side. Scales can be individually marked so that there is no confusion as to which scale appears in each photograph.

What's in the package:

Includes 5 double-sided heavyweight paper cards, instructions. Cards are 5" by 7" (12.7 x 17.8 cm)

Designed in Boston, Massachusetts made in USA:

DGK 4N6 Card accurately preserves, measures, identifies and documents critical crime scene and forensic medical evidence.



  • SALE PRICE! - Forensic ruler ABFO type with centimeter and inch markings top, side, and inside L-shape
  • Useful for forensic and crime scene photography as well as bite mark and skin injury documentation
  • Multiple perspective circles to compensate for distortion from oblique camera angles
  • Chromatic skin color reference scale and 11 step grayscales. Millimeter markings accurate to 0.5mm or better
  • Set of 5 cards. Printed on heavy card stock. Instructions included. Overall size is 5" by 7" (12.7 x 17.8 cm).
  • SALE PRICE! - Forensic ruler ABFO type with centimeter and inch markings top, side, and inside L-shape
  • Useful for forensic and crime scene photography as well as bite mark and skin injury documentation
  • Multiple perspective circles to compensate for distortion from oblique camera angles
  • Chromatic skin color reference scale and 11 step grayscales. Millimeter markings accurate to 0.5mm or better
  • Set of 5 cards. Printed on heavy card stock. Instructions included. Overall size is 5" by 7" (12.7 x 17.8 cm).

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