Sirchie Dual Purpose White "Hi-Fi" Latent Print Powder, 8 oz/237ml

The Sirchie Dual Purpose White "Hi-Fi" Powder (8 oz/237ml) is an oxide powder and it contains a fluorescent substance that permits developed latent prints to be viewed under ultraviolet light. Viewing and photographing latent prints on multi-colored backgrounds are no longer a problem since a bright fluorescence is produced. Excellent contrast under normal lighting is also available on dark surfaces.