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http://www.essortment.com/all/fingerprinthist_rmmv.htm Go to paragraph 12. You will find your answer. Kayden C. Alberta, Canada.

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What was the first crime solved by fingerprints?

Herschel's technique was improved upon by the scientist Sir Francis Galton in his book 'Fingerprints', in 1892. Also in 1892, Juan Vucetich, an officer in the Argentine Police Force is credited with making the first criminal fingerprint identification, after studying Galton's Book. He successfully proved that a bloody fingerprint found at a murder scene could only belong to one Francisca Rojas. (May need to confirm answer.)


Has a crime been solved using a lie detector before?

Maybe. But I like cake!


How do crime scene investigators fingerprint?

Crime scene investigators use techniques like powder dusting, cyanoacrylate fuming, or ninhydrin spraying to develop latent fingerprints at a crime scene. They then lift the developed prints using adhesive tape or specialized fingerprint lifting tools for analysis and comparison.


What are the benefits of using a fingerprint door lock?

One advantage of using a fingerprint door lock is that there is no point of keeping a key that can be unintentionally left at anywhere. Moreover, fingerprint is very specific for each person, therefore using a fingerprint door lock will increase the safety for the house.


What are the several methods police use to investigate a crime?

Interviewing/interrogating suspects, gathering potential evidence from the scene of the crime. obtaining fingerprint evidence, using staining techniques to ascertain if blood has been cleaned up from the scene, using tracking/sniffing dogs (if necessary, using DNA evidence (if needed), and many more.


How do you get fingerprints from porous surfaces?

To get fingerprints from porous surfaces, you can lightly dust the surface with fingerprint powder using a brush. The powder will adhere to the oils in the fingerprint ridges, making them visible. Then, carefully lift the fingerprint using fingerprint tape or an adhesive lifter for further analysis or comparison.


How does a fingerprint reader work?

A fingerprint reader works by using an imaging sensor to capture a fingerprint digitally. It is then compared to an existing image to determine if access is granted.


What percent of crimes are solved by DNA?

Approximately 35-40% of crimes are solved using DNA evidence. DNA technology has significantly improved the accuracy and success rate of solving crimes, especially in cases where biological evidence is left at a crime scene.


The fingerprint scanner may be bypassed so that a user can log on using the keyboard Why is this facility needed?

In case your fingerprint scanner breaks or malfunctions


How can you solved math?

By using mathematics


Why problems can be solved using gcf?

Reducing equivalent fractions to their simplest form.


How do csi take finger prints for a crime scene?

CSI technicians use specialized powder or chemicals to dust for fingerprints on surfaces. Once fingerprints are revealed, they are lifted using tape or a special tool and transferred onto a fingerprint card for analysis and comparison against a database.