2007-03-05 19:55:38 · 4 answers · asked by Harry 2 in Science & Mathematics ➔ Other - Science
Ummm, by touching something with a finger.
2007-03-05 20:03:54 · answer #1 · answered by Jim T 6 · 0⤊ 0⤋
You can leave traditional prints (oils) which are generally shown in movies and are reveled with powder application(s).
You can leave heat prints, which are visible only as long as the heat is present.
You can leave "Touch DNA" which does not even need to be a fingerprint. It can be any presence of your skin/hair/sweat in micro size and quantity to detect 99.99% identity formation.
Hope this helps answer your question...
2007-03-05 20:11:43 · answer #2 · answered by Chris 2 · 0⤊ 0⤋
Fingerprints are generally left when you touch something especially plastic or glass articles and even polished wood.
2007-03-05 20:14:41 · answer #3 · answered by vicky_007 1 · 0⤊ 0⤋
By being careless enough not to wear gloves and then touching things!!
2007-03-05 20:01:07 · answer #4 · answered by Anonymous · 0⤊ 0⤋