Lumicyano

Related terms

1:1 Macro Photography

Photography at a reproduction ratio of 1:1 (image sensor size equals subject size); the mandatory standard for all latent fingerprint photography before...

Alternate Light Source (ALS)

A device emitting light at selected wavelengths (typically 415 to 535 nm) used to detect biological fluids that fluoresce or absorb light...

Ardrox

A commercial fluorescent dye mixture (originally for aircraft-skin crack detection) that fluoresces broadly under 365 nm UV illumination; used as a post-CA...

Barrier Filter

An optical long-pass filter placed over the camera lens and worn as goggles by the examiner during ALS examination; blocks the excitation...

Basic Yellow 40 (BY40)

A fluorescent dye (excitation 450-490 nm, emission ~530 nm) applied immediately after CA fuming with a simple aqueous rinse to remove excess;...

Cyanoacrylate (CA) Fuming

The development of latent prints on non-porous surfaces by exposing the item to ethyl or methyl cyanoacrylate vapour in a humidity-controlled environment;...

Ethyl Cyanoacrylate (ECA)

The active monomer in forensic CA fuming products and most consumer Super Glue formulations; undergoes anionic polymerisation initiated by nucleophiles (water, amines)...

Inherent Fluorescence

The luminescent signal from latent print residue itself under ALS illumination, without any development agent; primarily from sebaceous components such as squalene...

Rhodamine 6G

A fluorescent dye applied as a post-treatment to cyanoacrylate-developed fingerprints; excited at 530 nm (green), it emits at 565-590 nm (yellow-orange), greatly...

Explained in

• Cyanoacrylate Fuming, Alternate Light and Fluorescent StainsA proprietary Foster + Freeman formulation that combines a fluorescent CA monomer with standard CA developer, enabling simultaneous development and fluorescent...