| Author | Message | ||
     valeriebrann |
Another process that works on thermal paper is RTX (Ruthenium Tetroxide). It is best if you fume it rather than pour the RTX directly onto the paper. The prints I developed this way came out weak, but I did not try to develop them further by fuming them longer. | ||
| Mark Richardson |
Re Jenni Mouer's request in respect of thermal paper, I am about to commence a research paper on the use of Therma Nin verses 'normal' ninhydrin. I have some stuff on this (namely an artical from the Journal of Forensic Identification by Jon Stimac dated 2003 and The Detail No 129, Jan 04). Has anyone done any work comparing these two methods, particularly in respect of 'real life' prints ie. ones from jobs weeks or months old (as opposed to yesterday, which you did yourself!!!!). Any help will be appreciated. Replies please to mark.richardson@police.govt.nz Mark Richardson Auckland Fingerprints New Zealand Police | ||
| David Taylor |
The JFI had an article last year on this. Use Muriatic Acid. Just hold the reciept over the open container where the fumes get to it and latents will develop on the treated/emulsion side of the paper. The latents we developed were of very good quality, but be careful though, you can over fume it. | ||
| Ernie Hamm |
I could give some references, but easier if you go to www.redwop.com (Lightning Powder website) and link to the new 'Reference Index' service. Enter 'thermal' as a keyword search and you will get several citations on the subject. One excellent reference is JFI article by Jon Stimac in Oregon. | ||
| Jenni Mouer |
Hello there I am currently in the middle of researching processing thermal paper for latent prints. I am trying to find some good background material on thermal paper itself - i.e. how it is made, how it works, etc... and I am having a hard time finding that information in layman terms. If anyone can point me in the right direction or has information about thermal paper I would appreciate any help. Thank you Jenni Mouer Forensic Scientist II - VADFS jmouer@dfs.state.va.us |
