Titanium Dioxide for dark non-porous surfaces?

[Amy Miller]

I am currently in search of any published studies (or internal validation studies) on the use of Titanium Dioxide for processing dark colored non-porous items for bloody prints. The only article I have been able to locate thus far was written by Josh Bergeron in the JFI back in 2003. Anyone know of any additional studies or publications?

[Michele]

Here's a few articles but I don't know if they are validation studies:

"Comparison of three types of White Powder Suspensions for the Recovery of Fingerprints on Wetted Nonpouous Surfaces"
JFI 58 (5), 2008 590-599

"Comparison of Vacuum Metal Deposition and Powder Suspension for Recovery of Fingerprints on Wetted Noporous Surfaces"
JFI 58 (5), 2008 600-613

"Processing Tape with Titanium Dioxide (Tio2)" by Dave Wade
Weekly Detail #38

Development of Latent Prints with Titanium Dioxide (TiO2) by Dave Wade
Journal of Forensic Identification, 52:5 (2002)

article at: http://www.dailypress.net/page/content. ... l?nav=5003

Development of Latent Prints Using Titanium Dioxide (TiO2) in Small Particle Reagent, White (SPR-W) on Adhesives
Journal of Forensic Identification, 55:3, (2005)

[Amy Miller]

Thanks to all for your emails! We are going ahead (and almost finished) with getting this process approved for our agency's use thanks in part to all of the information that folks sent to me... It was a tremendous help in not having to reinvent the wheel!

[Veronica Rauch]

I've been directly involved with validation studies using TiO2 in the past and have a great contact who can provide a rutile form of TiO2 powder at little (or no) cost to law enforcement agencies. If anyone else is interested, feel free to contact me offline.