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Arora S.S.,Michigan State University | Cao K.,Michigan State University | Jain A.K.,Michigan State University | Michaud G.,Michigan State Police
Proceedings of 2015 International Conference on Biometrics, ICB 2015 | Year: 2015

Automatic matching of poor quality latent fingerprints to rolled/slap fingerprints using an Automated Fingerprint Identification System (AFIS) is still far from satisfactory. Therefore, it is a common practice to have a latent examiner mark features on a latent for improving the hit rate of the AFIS. We propose a synergistic crowd powered latent identification framework where multiple latent examiners and the AFIS work in conjunction with each other to boost the identification accuracy of the AFIS. Given a latent, the candidate list output by the AFIS is used to determine the likelihood that a hit at rank-1 was found. A latent for which this likelihood is low is crowdsourced to a pool of latent examiners for feature markup. The manual markups are then input to the AFIS to increase the likelihood of making a hit in the reference database. Experimental results show that the fusion of an AFIS with examiner markups improves the rank-1 identification accuracy of the AFIS by 7.75% (using six markups) on the 500 ppi NIST SD27, 11.37% (using two markups) on the 1000 ppi ELFT-EFS public challenge database, and by 2.5% (using a single markup) on the 1000 ppi RS&A database against 250,000 rolled prints in the reference database. © 2015 IEEE.


News Article | April 26, 2016
Site: www.techtimes.com

Michigan police have started monitoring social media to track posts pertaining to the Flint water crisis, according to emails from Governor Rick Snyder's office. The online surveillance initiative is geared toward honing in on individuals who are making threats based on their frustration with the tainted water problem. In one instance, criminal proceedings have already been initiated against a man who made threatening comments on Facebook about the local government. A state police email states that the individual had called for "civil unrest" and the burning of the governor's mansion. Thus far, the police have not issued further comment on the matter or any other investigations that may come from their findings on social media. Michigan State Police Spokesperson Shanon Banner told MLive — The Flint Journal that the ultimate goal is to protect residents. Although the state police are monitoring the situation on social media, there is already unrest offline to be found throughout Michigan. Snyder has been criticized heavily since the discovery of lead-tainted water in Flint, and protesters went as far as to publicly heckle the governor at dinner in Ann Arbor in February. In an effort to relate to his citizens, Snyder promised to drink and cook with lead-tainted water from Flint for one full month on April 18. "Flint residents made it clear that they would like to see me personally drink the water, so today I am fulfilling that request," the governor stated. "And I will continue drinking Flint water at work and at home for at least 30 days." Following his announcement, critics took to social media networks such as Twitter to mock the governor's move. Some individuals called for the arrest of Snyder, while others simply asked him to resign. Many people stated that they distrusted the governor, and some residents claimed that they were "embarrassed" by his promise. Snyder's office claims that state, federal and independent water quality experts believe that Flint's water quality is "improving." Furthermore, it is supposedly "safe to drink as long as a filter is in place." A protective coating is being added to Flint's pipes to provide better quality water for the local residents. © 2016 Tech Times, All rights reserved. Do not reproduce without permission.


Oostdik K.,Promega Corporation | Lenz K.,Promega Corporation | Nye J.,Michigan State Police | Schelling K.,Michigan State Police | And 26 more authors.
Forensic Science International: Genetics | Year: 2014

The original CODIS database based on 13 core STR loci has been overwhelmingly successful for matching suspects with evidence. Yet there remain situations that argue for inclusion of more loci and increased discrimination. The PowerPlex® Fusion System allows simultaneous amplification of the following loci: Amelogenin, D3S1358, D1S1656, D2S441, D10S1248, D13S317, Penta E, D16S539, D18S51, D2S1338, CSF1PO, Penta D, TH01, vWA, D21S11, D7S820, D5S818, TPOX, DYS391, D8S1179, D12S391, D19S433, FGA, and D22S1045. The comprehensive list of loci amplified by the system generates a profile compatible with databases based on either the expanded CODIS or European Standard Set (ESS) requirements. Developmental validation testing followed SWGDAM guidelines and demonstrated the quality and robustness of the PowerPlex® Fusion System across a number of variables. Consistent and high-quality results were compiled using data from 12 separate forensic and research laboratories. The results verify that the PowerPlex® Fusion System is a robust and reliable STR-typing multiplex suitable for human identification. © 2014 The Authors.


Oostdik K.,Promega Corporation | French J.,Michigan State Police | Yet D.,Michigan State Police | Smalling B.,Sorenson Forensics | And 14 more authors.
Forensic Science International: Genetics | Year: 2013

As short tandem repeat markers remain the foundation of human identification throughout the world, new STR multiplexes require rigorous testing to ensure the assays are sufficiently robust and reliable for genotyping purposes. The PowerPlex® 18D System was created for the direct amplification of buccal and blood samples from FTA® storage cards and reliably accommodates other sample materials. The PowerPlex® 18D System allows simultaneous amplification of the 13 CODIS loci and amelogenin along with four additional loci: Penta E, Penta D, D2S1338, and D19S433. To demonstrate suitability for human identification testing, the PowerPlex® 18D System was tested for sensitivity, concordance, inhibitor tolerance, and performance with thermal cycling and reaction condition variation following SWGDAM developmental validation guidelines. Given these results, PowerPlex® 18D System can confidently be used for forensic and human identification testing.


Horvath F.,Michigan State University | Mccloughan J.,Michigan State Police | Weatherman D.,National Center for Credibility Assessment | Slowik S.,Stanley Inc.
Journal of Forensic Sciences | Year: 2013

The purpose of this study was to determine if auditors could identify truthful and deceptive persons in a sample (n = 74) of audio recordings used to assess the effectiveness of layered voice analysis (LVA). The LVA employs an automated algorithm to detect deception, but it was not effective here. There were 31 truthful and 43 deceptive persons in the sample and two LVA operators averaged 48% correct decisions on truth-tellers and 25% on deceivers. Subsequent to the LVA analysis the recordings were audited by three interviewers, each independently rendering a decision of truthful or deceptive and indicating their confidence. Auditors' judgments averaged 68% correct decisions on truth-tellers and 71% on deceivers. Auditors' detection rates, generally, exceeded chance and there was significantly (p < 0.05) greater confidence on correct than incorrect judgments of deceivers but not on truth-tellers. These results suggest that the success reported for LVA analysis may be due to operator's judgment. © 2013 American Academy of Forensic Sciences.

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