#fluroscence

Follow @forensicfield for more notes and knowledge on forensic science..

https://t.me/forensicfield

https://forensicfield.blog/

Fluorescence Examination:: As early as 1933, fluorescence examination with UV light was suggested as a method of visualizing latent prints dusted with anthracene powder on multicolored surfaces (Inbau, 1934, p 4). Before the late 1970s, UV fluorescent powder was used occasionally and appears to have been the only credible fluorescent method of latent print detection. In 1976, researchers at the Xerox Research Centre of Canada discovered inherent latent print fluorescence via continuous wave argon ion laser illumination. Shortly thereafter, the first latent print in a criminal case was identified, using inherent luminescence via laser excitation (fingerprint on black electrical tape) (Menzel and Duff, 1979, p 96). Since the late 1970s, advancements in the technology of fluorescence detection have greatly aided the hunt for many types of forensic evidence. Today, evidence that would be barely perceptible or even invisible under normal lighting is routinely intensified by fluorescence. Bloodstains, semen, bruises, bone fragments, questioned documents, flammable residues, fibers, and fingerprints all merit examination with a forensic light source or laser.

thank you and omg ily

URL: 10/10

ICON: 10/10

POSTS: 10/10

THEME: 10/10

OVERALL: 10/10

ugh very little lol. but i’d say the green day concert, getting an ipod lol and… that’s it? 

br: 9.5/10

dubai bc that’s one of my favourite places :))