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Benefits of Fingerprints in Solving Crimes

Fingerprints are something people take time to contemplate about on a daily basis. In reality, unless somebody is attempting to eliminate pesky fingerprints out of mirrors or furniture, it is unlikely an ordinary person thinks of fingerprints at all.

But for a few people, fingerprints are an essential portion of their job life. Law enforcement officers and forensic experts spend hours thinking about how prints help solve crimes, and attempting to locate, gather, document and compare these special identifiers that could connect a particular individual to a specific offense. These individuals understand that a fundamental human characteristic that many people take for granted can be among the best tools in solving crimes.

Each person is born with unique fingerprints. No two fingerprints look the same; not even on identical twins. The formation of these unique whorls and lines that constitute an individual’s fingerprints happen at the fetal period and stay the same during one’s lifetime. This makes for a unique mark which can positively identify one person against another, particularly useful when a person of interest has an existing record of fingerprints on file with police, or other government institutions.

Fingerprints comprise a set of swirling lines. How these lines shape and design themselves is exactly what makes every fingerprint unique. Regardless of the unbelievable number of fingerprints, there are only seven distinct kinds of lines which make up fingerprints. These lines may start, stop or divide at any point within the print. The shapes, lengths, angles, heights, and widths create billions and billions of unique prints.

Using their unique attributes, it becomes simple to see precisely how fingerprints can help solve crimes. Leaving fingerprints at a crime scene is more like dropping a calling card there. There are a few unique ways fingerprints get left behind by careless crooks. The most common way is by oil transfer from the finger onto an object such as a doorframe or table. Amino acids in the finger may even leave a discernable mark. Fingerprints may also be seen as an impression in a soft material like putty. Finally, they are sometimes drawn up by substances on the finger such as paint or blood.

Uncovering fingerprints help solve a crime could be accomplished in a few ways. Adhering powders onto new fingerprints will make the powder adhere to the grease making the fingerprint visible. Another technique is using several drops of cyano-acrylate or even superglue. When these drops are warmed, they vaporized and the smoke attaches to the fingerprint leaving a clear white print. Specialised crime scene laboratory equipment can also find fingerprints.

Fingerprints may be stored for further investigation in several of ways, including: taking photos f the printing, saving it on a rubber lifter, keeping the original ground the print was on and copying the print using digital technology.

Hopefully, the interconnected nature of our society will eventually lead to having all of the fingerprint databases connected for easy cross-reference.

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