1. The prints or footwear impression must be set prior to the application to prevent loss of detail.
2. Select an application method.
Tray immersion: Submerge item Acid Violet 17 solution for 1 minute.
Spray application: Spray Acid Violet 17 solution onto item until coated.
3. Rinse with water or Acid Violet 17 Rinse/Destain and allow the item to air dry.
4. Ridges will develop a purple color and can be captured using 1:1 photography.
5. Lift the print with a white gelatin lifter.
6. View the print using a forensic light source in the 490 – 575nm range with red goggles.
7. Capture ridge detail using 1:1 photography and a red barrier filter.
REFERENCES
Yamashita, B., & French, M. (2010). Fingerprint Sourcebook – Chapter 7: Latent Print Development. Retrieved from https://www.ojp.gov/pdffiles1/nij/225327.pdf
TriTech Forensics. (2021). Latent Print Fluorescent Stain – Acid Violet 17: Product Description. Retrieved from https://tritechforensics.com/che-1526-acid-violet-17-latent-print-fluorescent-stain