1 / 16

Ku San!

Ku San!. Do Now: Answer the the Q  Agenda: Databases HW: find an interesting article that uses on of the databases Write a summary of the article and how the database was used. Forensic Databases. Integrated Automated Fingerprint Identification System (IAFIS)

boyd
Télécharger la présentation

Ku San!

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ku San! • Do Now: • Answer the the Q  • Agenda: • Databases • HW: • find an interesting article that uses on of the databases • Write a summary of the article and how the database was used

  2. Forensic Databases • Integrated Automated Fingerprint Identification System (IAFIS) • Fingerprint and criminal history system for 50 million subjects • Operational since 1999. Maintained by the FBI • An examiner makes a digital image of the print with a camera or scanner, marks points on the print to guide the computerized search. Search is completed within minutes against all images in IAFIS

  3. CODIS • Combined DNA Index System • Became fully operational in 1998; maintained by the FBI • All 50 states have legislated that DNA profiles of those convicted of felony sexual offenses be stored in database.

  4. CODIS • Forensic Index contains 110,000 DNA profiles from unsolved crimes • Offender Index contains profiles of nearly 3 million convicted offenders • Hundreds of thousands are backlogged • Success in identifying perpetrators is due to the fact that most crimes involving biological evidence are committed by repeat offenders

  5. NIBIN • National Integrated Ballistics Information network • Maintained by the Bureau of Alcohol, Tobacco, Firearms and Explosives • Images of bullets and cartridge casings • Helps produce a short list of candidates for a firearms examiner to manaully compare • More that 10,000 “hits” have been recorded

  6. PDQ • International Forensic Automotive Paint Data Query • Maintained by Royal Canadian Mounted Police • Contains chemical and color information pertaining to original automotive paints

  7. Glass Evidence Database • contains more than 700 glass samples • from manufacturers, disrtibutors, and vehicle junkyards • cannot determine the source of an unknown piece of glass • can assess the relative frequency that two glass samples from different sources would have the same elemental profile • Uses plasma mass specs

  8. TreadMark and SoleMate • TreadMark • commercial product that uses four parameters—pattern, size, damage, and wear • compared to suspects in custody and crime scenes • SoleMate • contains manufacturer, date of market release, an image or offset print of the sole, and pictorial images of the uppers

  9. TreadMate • Contains more than 5,000 vehicle tires and tread patterns • manufacturer, date of release, pictorial image, pattern features • code for patterns: • waves, lines, diamonds, zigzags, curves, and blocks

  10. FISH • Forensic Information System for Handwriting • Maintained by the U.S. Secret Service • enables document examiners to scan and digitize text writings • such as threatening correspondence • plotted as arithimatic and geometric values

  11. International Ink Library • Maintained bu the U.S. Secret Service and the IRS • includes more than 9,500 inks dating back from the 1920’s • pen and ink manufacturers are asked to sumbit their new ink formulations • chemically tested and added to the reference collection

  12. Drug Databases • Indent-A-Drug • private company • publishes a book and computer program to help identify drugs in tablet or capsule form • PharmInfoNet • contains information on prescription druges, included uses, marketing and availability, and common side effects • RxList • database of prescription drugs like PharmINfoNet

  13. Ignitable Liquids Reference Collection (ILRC) • allows a laboratory to isolate an ignitable liquid of interest • designed for screening purposes only • does not replace American Standard Testing Materials • enter name of the liquid and can search the database

  14. ChemFinder • conatins information from manufacturers on chemicals • chemical structures • physcial properties • hyperlinks

  15. SICAR • Shoeprint Image Capture and Retrieval • Commercially available – not controlled by a government agency. • Helps match crime-scene foot ware impression with a particular shoe manufacturer.

  16. Crime Scene Reconstruction • Initial Walk-through done to formulate how the scene should be processed • The investigator unravels the sequence of events that took place during the crime • Often involves a medical examiner or criminalist • Team effort may involve blood spatter analysis, bullet trajectory analysis, an evaluation of livor mortis, etc.

More Related