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Latent Fingerprints

  • New Sirchie Training to Take Your Latent Print Comparison Skills to the Next Level

    By: Andy Mariella
    You work as a latent fingerprint examiner or supervise a LPE team. You are driven to become the best examiner you can be. Practice involving complex exercises and real life casework comparisons can help you. Sirchie is offering a new Comprehensive Advanced Latent Print Comparison course in 2016. This class is the time and place to get the practice you need to become a better latent print examiner. Designed and taught by Johnny Leonard, former Deputy Director of the Wake County (NC) CCBI,...
  • PrinTips by Sirchie - Tips for Successful Latent Print Processing of Crime Scenes

    By: Administrator
    Latent Print Development and Lifting Techniques – Review Are You Registered for the Next Sirchie Webinar, Lifting Latent Prints From Difficult Surfaces?  Date/Time TBA. Below are some articles on basic techniques for using latent powders and chemicals. You may consider reviewing these before attending the webinar. Latent Fingerprints Part 1: What is a latent fingerprint? Part 2: Latent Powders Overview of Chemical Tools and Methods for Latent Print Development PrinTips01 – Magnetic Latent...
  • Developing Latent Prints from Gloves

    By: Administrator
    Latent Print Daniel J. Rinehart/Crime Scene Investigator Network Case #1: Developing and Identifying a Latent Print Recovered from a Piece of Latex Glove Using Ninhydrin-Heptane Carrier Developing suitable ridge detail on the interior side of surgical type gloves is infrequent and identifying recovered ridge detail is even more unusual. Thanks to the research and publication of the work done by Jason Pressly of the Mississippi Crime Laboratory, I had the benefit of having another option in...
  • Fingerprints give police new clues for solving crime

    By: Administrator
    Fingerprints give police new clues for solving crime By Rebecca Morelle Science reporter, BBC World Service Article Source and Introductory Video:  As darkness falls across the suburbs of Leeds, calls start to flood in to Chris Barley's radio from police HQ. It is prime time for criminal activity, and it is going to be a busy night for West Yorkshire's crime scene investigators too. A break-in has been reported nearby, and the forensic officer gets on his way. When you're gathering evidence at...
  • Basics of Latent Print Chemicals - Session 1

    By: Administrator
    Lumiscene Print Join Sirchie for our new webinar: "Basics of Latent Print Chemicals - Session 1" Thursday July 24, 2014,  1-2 PM Eastern Standard Time The use of chemical reagent to develop latent prints left behind during the commission of a crime is a common practice to help solve cases and identify the right suspect.  Executing the proper protocols in the right sequence is essential to ensuring the best results possible. This webinar provides the fundamentals for chemical use and...
  • Important New Research in Fingerprint Comparison

    By: Administrator
    UCLA News Fingerprint examination, though in use for more than 100 years, has until recently undergone surprisingly little scientific scrutiny. A paper recently published in the scientific journal PLOS ONE provides important new insight into what specific, visual aspects of fingerprint pairs make their analysis more or less difficult. The paper, authored by UCLA psychology professor Philip Kellman, UCLA Law professor Jennifer Mnookin and several additional co-authors, investigates one...
  • Latent Print Processing Training at Kyle, TX

    By: Administrator
    With the  cooperation of the  Kyle Police  Dept.,  Sirchie is offering its comprehensive “hands-on” General Processing Class  at the  Kyle Police  Dept. August 5-7, 2014 Kyle Police Dept., 111 North  Front  Street, Kyle TX, 78640. This will be a Tuesday through Thursday, 8:30  am to 4:00  pm,  course that  covers state-of-the-art methods of identifying, recording, processing and  preserving various types of evidence found at the scene of the  crime. The program is geared...
  • Dutch scientists crack fingerprint dating riddle

    By: Administrator
    June 4, 2014 8:54pm GMA Network News THE HAGUE - Criminals' days may be numbered after Dutch forensic experts discovered how to accurately date fingerprints, a breakthrough that could one day let police date crime scene prints from years ago. "It's not quite the Holy Grail of fingerprinting, but it's a very important discovery," Marcel de Puit, fingerprint researcher at the Dutch Forensic Institute (NFI), told AFP on Wednesday, hailing what he said was a world's first. "Police regularly ask us...
  • Increased IDs from 'Hidden' Prints On Bullets and Knives

    By: Administrator
    Science Daily Article   July 2, 2013 — A new way of detecting and visualizing fingerprints from crime scenes using color-changing fluorescent films could lead to higher confidence identifications from latent (hidden) fingerprints on knives, guns, bullet casings and other metal surfaces. The technique is the result of a collaboration between the University of Leicester, the Institut Laue-Langevin and the STFC's ISIS pulsed neutron and muon source, and will be presented at the Royal Society...
  • Forensic Metal Fingerprinting

    By: Administrator
    Groundbreaking research into fingerprint detection developed at the University of Leicester now has an industrial application, thanks to a new invention by the scientist who developed the technique. Simple, Handheld Device, Which Can Measure Corrosion On Machine Parts   Science Daily, Corrosion Indicator June, 2013 Oct. 22, 2010 — Groundbreaking research into fingerprint detection developed at the University of Leicester now has an industrial application, thanks to a new invention by...
  • Latent Fingerprint Suitability for ID Judgments

    By: Administrator
    From the National Institute of Justice NIJ Releases two important publications dealing with latent fingerprints. Cognitive and Contextual Influences in Determination of Latent Fingerprint Suitability for Identification Judgments Quantitative Measures in Support of Latent Print Comparison Sign Up For the Latest News from Sirchie & the Forensics Industry Cyanoacrylate Fuming--The Mainstay for latent Development Like Us on Facebook
  • RUVIS and The Effects of Ultraviolet Light Exposure on DNA Analysis of Fingerprints

    By: Administrator
    The Sirchie KRIMESITE Imager. is a tool that can be used to detect and document latent fingerprints on various surfaces without the use of chemical enhancement. The Imager takes advantage of the different UV light reflectance properties of the fingerprint and the surface on which it is located. Julie Luby Nicholson*, M.F.S.; Todd W. Bille*, M.S.; Michael J. Malia*, Ph.D; Robert A. Bever*, Ph.D. The Sirchie® KRIMESITE Imager. is a tool that can be used to detect and document latent...
  • Overview of Chemical Tools and Methods for Latent Print Development

    By: Administrator
    Overview of the Chemical Compounds and Methods for Latent Fingerprint Development Powders Powders adhere to both water and fatty deposits. These are generally useful on newer prints only. Choose a powder to contrast with the background. They are useful on any dry, relatively smooth, non-adhesive surfaces. Use after laser fluorescence. May be used before ninhydrin and after cyanoacrylate. Results may vary with skill of technician. “Lift” developed prints by photography or conventional...
  • Finding Latent Fingerprints on Wet Surfaces-How and When to Use Small Particle Reagent

    By: Administrator
    The original SPR formula consisted of a very finely ground black powder—Molybdenum disulfide, along with a liquid detergent and water. This mixture, when sprayed on a vertical SPR Application or near-vertical surface, tends to run downward. If latent prints are present, the liquid-suspended black powder will attach itself to the moisture residue of latent prints, thus making the ridge structure of the print plainly visible. How CSIs process wet surfaces for latent fingerprints. It had rained...
  • Processing Latent Fingerprints on Difficult Surfaces

    By: Administrator
    textured surfacesA single crime scene will offer a variety of surfaces that potentially harbor latent fingerprints—some present little difficulty in developing and lifting these prints while others offer significant challenges. One surface that comes to mind are textured surfaces such as leather furniture, handbags, wallets, certain counter and desk tops, and automobile interiors. A second type of difficult surface involves materials such as plastic baggies, cellophane packaging, shrink-wrap,...