Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Fingerprint Alteration

No description
by

Kehydra Tanner

on 4 January 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Fingerprint Alteration

By: Kehydra Tanner
1st Period Forensics Fingerprint Alteration What is altering fingerprints and why do criminals do it? Methods Photographs People have been altering fingerprints for decades. Altering fingerprints is the process of physically deforming their prints. Criminals have went to extreme measures such as surgery, acid, stitches, cutting, and even burning to alter their fingerprints. Criminals alter fingerprints so they can beat the system, but in the end it's usually insufficient. Cases involving altering fingerprints Roscoe Pitts had a surgeon remove the skin from his fingertips and replace it with the skin grafts on his chest.


John Dillinger tried to burn his prints off with corrosive acid. Methods Surgery: Surgical removal of prints may dramatically change the appearance, but most of the time it doesn't stop them from getting caught.


Acid : Even though people apply acid to their fingertips there may still be enough information left to connect them back to their original prints. Stitches are used to modify their fingerprints.

Cutting off the skin on the fingertips involves slicing the skin off the fingertip with a razor. Removing the skin more than 1mm deep prevents the papillary ridges from appearing again.

Burning: Some people burn their fingerprints with a lit cigarette. It's a very slow painful process that takes hours to complete. The person will not be able to use their hands and they will have constant pain, blisters, and infection. . "What Are Altered Fingerprints?." Forensics 4 Fiction. N.p., 7 2011. Web. 15 Dec 2012. <http://forensics4fiction.com/2011/09/07/what-are-altered-fingerprints/>. . "Criminals go to extremes to hide identities." USA Today. N.p., 6 2007. Web. 15 Dec 2012. <http://usatoday30.usatoday.com/news/nation/2007-11-06-criminal-extreme_N.htm>. . "Criminals go to extremes to hide identities." USA Today. N.p., 6 2007. Web. 15 Dec 2012. <http://usatoday30.usatoday.com/news/nation/2007-11-06-criminal-extreme_N.htm>. Cases involving altering fingerprints Gerald Perez (Edgardo Tirado) had thick stitches on his fingertips because he cut his fingertips vertically and stitched them back together.

Gus wrinkler was a murderer and bank robber and he altered the fingerprints on his left hand except for his thumb. He did so by slashing and tearing the flesh off of his fingers. Feng, Jianjiang, Anil Jain, and Arun Ross. "Fingerprint Alteration." . N.p., n.d. Web. 16 Dec 2012. <http://www.csee.wvu.edu/~ross/pubs/FengJainRoss_AlteredFingerprint_TechReport09.pdf>. Feng, Jianjiang, Anil Jain, and Arun Ross. "Fingerprint Alteration." . N.p., n.d. Web. 16 Dec 2012. <http://www.csee.wvu.edu/~ross/pubs/FengJainRoss_AlteredFingerprint_TechReport09.pdf>. Feng, Jianjiang, Anil Jain, and Arun Ross. "Fingerprint Alteration." . N.p., n.d. Web. 16 Dec 2012. <http://www.csee.wvu.edu/~ross/pubs/FengJainRoss_AlteredFingerprint_TechReport09.pdf>. Amorasak, Marisa. " The Ultimate Disguise: Criminals Using Plastic Surgery to Evade Capture." Plastic Surgery Portal. N.p.. Web. 17 Dec 2012. <http://www.plasticsurgeryportal.com/articles/the-ultimate-disguise-criminals-using-plastic-surgery-to-evade-capture/369>. Singh, Kajal. "Altered Fingerprints." . N.p., 27 2008. Web. 17 Dec 2012. <https://secure.interpol.int/Public/Forensic/fingerprints/research/alteredfingerprints.pdf>. Selby, Nick. "II: Removing Fingerprints, & Removing Fingerprinting Programs ." Police-Led Intelligence. N.p., 30 2011. Web. 17 Dec 2012. <http://policeledintelligence.com/2011/05/30/ii-removing-fingerprints-removing-fingerprinting-programs/>. Surgically altered fingerprints by skin grafting. N.d. Forensics4FictionWeb. 17 Dec 2012. <http://forensics4fiction.com/2011/09/07/what-are-altered-fingerprints/>. Skin grafted onto a finger to alter the print. N.d. Forensics4FictionWeb. 17 Dec 2012. <http://forensics4fiction.com/2011/09/07/what-are-altered-fingerprints/>. Selby, Nick. N.d. Police-Led IntelligenceWeb. 17 Dec 2012. <http://policeledintelligence.com/2011/05/30/ii-removing-fingerprints-removing-fingerprinting-programs/>.
Full transcript