Dye Stain
Rhodamine 6G
1. Select an application method.
Tray immersion: Submerge item in Rhodamine 6G solution and leave for 5 seconds.
Spray application: Evenly spray Rhodamine 6G solution with a squirt bottle or aerosol sprayer onto item and leave for 5 seconds.
2. Allow item to air dry.
3. Ridges will develop a pinkish orange color and can be captured using 1:1 photography.
4. View ridge detail using a laser or forensic light source in the 495 – 540nm using orange or red goggles.
5. Capture ridge detail using 1:1 photography and an orange colored or 550 (BP 35) bandpass filter.
View under
475 - 540nm
Goggles / Filter
Orange / Red
Development Color
Pink / Orange
REFERENCES
Chesapeake Bay Division International Association of Identification. (2009). “Rhodamine 6G”. Retrieved from https://www.cbdiai.org/rhodamine-6g.html
DEA Office of Forensic Sciences. (2020). “Rhodamine 6G (Fluorescent Dye)”, Latent Print Examination Manual, pp. 134 – 135. Retrieved from https://www.dea.gov/sites/default/files/2020-05/2020%20Latent%20Print%20Examination%20Manual%20DEA.pdf
FBI Laboratory Division. (2000). “Rhoadmine 6G (Fluorescent Dye)”, Processing Guide for Developing Latent Prints, pp. 57 – 58. Retrieved from https://archives.fbi.gov/archives/about-us/lab/forensic-science-communications/fsc/jan2001/lpu.pdf