Essay On Crime Detection

Crime Detection is how police and the government find and capture criminals. There are multiple ways to catch criminals but some are very good ways and some are alright. The strengths of crime detection is like Fingerprint detection. The weakness in crime detection is like handwriting analysis, and the lie detector. They're all good ways but some are not so reliable.

Finger print detection is a really good way to find criminals. Finger prints are excellent on finding the exact criminal because no two fingerprints are exactly the same(Source #1, 1982-Galton, sentence 3) . So once you match the fingerprint with one person then thats the criminal or whoever you are looking for. All you have to do is take advantage of the friction ridge patterns

to identify people by their fingerprints. There is only 3 steps in detecting ones fingerprint. "First, friction ridges form complex patterns during fetal development and remain unchanged during a person's lifetime. Second, every fingerprint has a unique pattern of friction ridges that distinguishes it from other fingerprints. Third, fingerprints share general characteristics that allow a systematic classification."(Source #1, Paragraph 2) So thats why the finger print system is one of the strongest crime detection systems.

Hand Writing Analysis is not that reliable.

Some people have the same handwriting so it wont be fair if you accuse the wrong person because they have the same handwriting as the actaual criminal. But writing signatures is a diffeent story because someone could forge a signature and it looks sloppy or a whole different way to tell if a document is valid. Some peoplecan tell the difference in handwriting like the The International Graphoanalysis Society (IGAS). The igas are experts in hanwriting analysis. (Source #2, Paragraph 4)

The lie detector Sometimes known as polygraph. But its not really reliable. They basically base these lie detectors off of nervousness. Like the old times. They made people lick hot irons, put rice powder in your mouth see if you would spti it out, and even try to swallow bread and cheese. (Source #3, Paragraph 2). Now days the check blood pressure, Skin resistance, pulse, and also breathing. But people can easily get nervous. They might even get nervbous to come into an office to be accused of a crime. What if your the wrong person and they come ask you to lick a iron. I bet you would be nervous too. So most people think that the shouldnt base lie detectors off of nervousness.

Theyre are many crime detection ways. But these are some most used ones from ancient time still now. Alot of criminals get captured using thesse crime detection ways. But some crime detection ways are not too

reliable.