From the flyer:
"This presentation will chronicle the discovery of the major techniques used for visualizing latent prints over the last century and a half. Techniques such as powdering, iodine fuming, and silver nitrate were developed during the 19th century. Ninhydrin, physical developer, cyanoacrylate fuming, lasers, and vacuum metal deposition were introduced during the 20th century. What techniques or technologies are likely to be brought to the light in the 21st century? There have already been some interesting advances in the areas of upconversion and nano-particle technologies. What more can we expect?"