New fingerprinting technique detects prints on weapons that have been wiped . Police in Texas using method to investigate unsolved killing of woman in 2007 . `` Because of the nature of who these people are and the nature of what they 're committing , personal hygiene is not foremost in their mind when they 're doing this , '' Bond said . Comment:
New fingerprinting technique detects prints on weapons that have been wiped . Police in Texas using method to investigate unsolved killing of woman in 2007 . Comment: