LED latent track search equipment will become a new tool for criminal evidence collection

"Latent trace search equipment" using LED lamp shines on the ground, facing parallel desktop, let the eye is not easy to identify the footprints, perspiration, hair immediately. Taiwan police forensics director Jian Menghui said, most of the crime scene prints and fingerprint trace evidence is complete, just a flashlight, carriers currently used are ball lamp type light source, insufficient brightness and irradiation angle limit, can only see the footprints, the partial fingerprint, if need a large area to collect evidence, it is easy to miss. With the criminals wearing gloves are almost, fingerprint detection rate decreased year by year, must be with the shoe, sweat, hair and other trace can improve the detection rate.

The lamp is used in spherical or tubular, such as light bulbs, fluorescent lamp, light source is at the top, and from the angle of luminance, the naked eye is difficult to see the latent trace ground, walls, search lamp units used are dead forensics. He began to develop latent trace search lamps a year ago, tried lighting lamp, the effect is not good, finally found the LED lamp is best, let LED light is arranged close to the line, parallel to the ground radiation, not only footprints, fingerprints at a glance, perspiration, dust, hair, fibers are also visible, no evidence of dead, not easy to miss important trace evidence.

Jian Menghui stressed, especially the LED lamp power, as long as the connected laptop battery, or you can take a walk up the mountain under the sea, can be used in any environment, no water and no electricity or empty wilderness better, I believe it will become a new tool for police investigation.

It is understood that the "latent trace search equipment" will be published in the 2008, police forensic, criminal evidence collection has become a new weapon.

Source: Taiwan United