Dye Stain
R.A.M.
1. Select an application method.
Tray immersion: Submerge item in R.A.M. solution.
Spray application: Evenly spray R.A.M. solution with a squirt bottle onto the item.
2. Allow item to air dry.
3. Ridges will develop a orange color and can be captured using 1:1 photography.
4. View ridge detail using a laser or forensic light source in the 415 – 530nm range with orange colored goggles.
5. Capture ridge detail using 1:1 photography and an orange barrier filter.
View under
415 - 530nm
Goggles / Filter
Orange
Development Color
Yellow
PRO TIP: The R.A.M. solution may become unstable after 30 days. Be sure to check for separation and shake the container vigorously to return the dye to suspension.
REFERENCES
Chesapeake Bay Division International Association of Identification. (2009). “Reagents: R.A.M.”. Retrieved from https://www.cbdiai.org/ram.html
FBI Laboratory Division. (2000). “Cyanoacrylate Fluorescent Dye (RAM)”, Processing Guide for Developing Latent Prints, pp. 19- 20. Retrieved from https://archives.fbi.gov/archives/about-us/lab/forensic-science-communications/fsc/jan2001/lpu.pdf