Table 1 Various studies on polilight detection of saliva
From: Recent advancements in identification and detection of saliva as forensic evidence: a review
Year of study | Substrate | Observation |
|---|---|---|
Wawryk and Odell (2005) | Saliva stains on human skin | High-intensity LED, 370–480 nm, and Poliray, 450 nm—not potent enough to produce fluorescence |
Carter-Snell and Soltys (2005) | Saliva stains on human skin | 100% sensitive to UV light produced by mineral light, 254Â nm, and evident products CE, 365Â nm while only 14% towards Bluemaxx BM500 |
Vandenberg and van Oorschot 2006 | Saliva from nylon cloth | Polilight PL 500, a 500W xenon arc lamp- detected 100% samples |
Camilleri et al. (2006) | Various cloth material | Polilight PL 500—poor and non-specific detection |
Seidl et al. (2008) | Saliva stain | compared two ALS—Laser and Mercury Arc lamp Lumatec Superlite-400. The laser gave slightly better results than the latter |
Lee et al. (2012) | Saliva sample | portable LED-based multi-wavelength light source supplying supply near-UV, blue, and 415Â nm |
Karchewski et al. (2014) | Saliva on fabric [comparison study] | • Leeds Spectral Vision system (IR/455 nm) • Polilight-Flare Plus UV (365 nm) • Mini-CrimeScope 400 CSS (485 nm)- better than the other two |
Tay et al. 2021 | On fabric and diluted form | • Polilight PL400 (PL400) • Polilight PL500 (PL500) • LED-based Crime-lite 82S (blue) (CL82S)- better than the other two |