Detailed text transcripts for TV channel - CNN - 20110214:18:47:00
Can but very thick steel. and it has a glass window in it. what you do is you heat small amounts of gold under a very high vacuum and this deposits small amounts of gold on the surface of the garment and then bizarrely you then add zinc in the same way and the fingerprint or sometimes it's better to say that the hand print or the mark of the hand then appears clearly as if by magic in terms of being sort of a negative on material that you're investigating. >> how accurate is this process? how often do you get good results? >> well, it really depends on the type of material and what you actuall...