1. Fingerprints

2. What We will be Doing
Part I – Intro and Background Part II - Recording and Classifying Prints Part III - “Lifting” and Preserving Prints Part IV - Reviewing other types of Prints

3. Background: Before Fingerprinting- Bertillion (1883)
Portrait parle – a physical description of the perpetrator and their dress Anthropometry - Precise body measurements and photographs

4. Fingerprinting – Galton and Henry
Primary classification scheme
Arches, whorls and loops
“Although Galton was not the first to propose the use of fingerprints for identification (Sir William Herschel had used them in India for this purpose) he was the first to place their study on a scientific basis and so lay the groundwork for their use in criminal cases.  He was able to collect a large sample of prints through his Anthropological laboratories, eventually amassing over 8,000 sets.  His study of minutiae in prints provided the  foundation for meaningful comparison of different prints, and he was able to construct a statistical proof of the uniqueness, by minutiae, of individual prints.” Wikipedia
Numerical classification system

5. Anatomy of a Fingerprint
Formed in utero, lifelong pattern
No two fingerprints are identical
Ridge patterns can be classified

6. Loops, whorls, and arches

7. Fingerprint Cases The Strange Case of Francisca Rojas
“In 1892, two boys were brutally murdered in the village of Necochea, near Buenos Aires, Argentina. Initially, suspicion fell on a man named Velasquez, a suitor of the children's mother, Francisca Rojas. But even after torture, the police could not get him to confess.
Investigators found a bloody fingerprint at the crime scene and contacted Juan Vucetich, who was developing a system of fingerprint identification for police use. Vucetich compared the fingerprints of Rojas and Velasquez with the bloody fingerprint. Francisca Rojas had denied touching the bloody bodies, but the fingerprint matched one of hers.
Confronted with the evidence, she confessed—the first successful use of fingerprint identification in a murder investigation. After the Rojas case, Vucetich improved his fingerprint system, which he called "comparative dactyloscopy." Adopted by the province of Buenos Aires in 1903, it spread rapidly throughout the Spanish-speaking world.”
Watch Amazon Prime Catching Killers – Season 1, Episode 2 (45 min: 0 – 21 min)

8. Part I – Intro and Background
Part II - Recording and Classifying Prints
Rolling Ink Prints
Loops, Arches and Whorls
Ridge Characteristics
Primary Identification Number
Part III - “Lifting” and Preserving Prints
Part IV - Reviewing other types of Prints

9. RIDGE CHARACTERISTICS
65%
30% 5%

13. RIDGE CHARACTERISTICS
Minutiae: Characteristic Ridge Patterns

17. First lab – recording and classifying fingerprints

18. What We will be Doing Part I – Intro and Background
Part II - Recording and Classifying Prints
Part III - “Lifting” and Preserving Prints
Powders: Black, gray, magnetic and fluorescent
Chemicals: ninhydrin, iodine, cyanoacrylate (Superglue)
Part IV - Reviewing other types of Prints
Watch Amazon Prime Catching Killers – Season 1, Episode 2 (45 min: 21 min - )

21. Powders
Powder choices are determined by the type and color of the surface holding the latent print. Most examiners use black or gray powders on nonabsorbent surfaces.
Black powder contains carbon (charcoal) and is used on light surfaces.
Gray power contains aluminum particles and is used on dark surfaces, mirrors and metal surfaces.
Black and gray magnetic powders are used on rougher textures like leather and rough plastics where tradition powder might clump and get caught in the surface features.
Fluorescent powders are used when the background color needs to be subtracted out for clarity.

22. Iodine Fuming Oldest Method Mechanism unknown Impermanent
Must be photographed

26. FBI BIOMETRIC DATABASES
AFIS: Automated Fingerprint Identification System: 1970s – each state had their own with
IAFIS: Integrated Automated Fingerprint Identification System: FBI July 1999
NGI: Next Generation Identification: incremental replacement of IAFIS beginning 2011
What is included in IAFIS: Not only fingerprints, but corresponding criminal histories; mug shots; scars and tattoo photos; physical characteristics like height, weight, and hair and eye color; and aliases. The system also includes civil fingerprints, mostly of individuals who have served or are serving in the U.S. military or have been or are employed by the federal government. The fingerprints and criminal history information are submitted voluntarily by state, local, and federal law enforcement agencies.
How big it is: IAFIS is the largest criminal fingerprint database in the world, housing the fingerprints and criminal histories for more than 70 million subjects in the criminal master file, along with more than 34 million civil prints. Included in our criminal database are fingerprints from 73,000 known and suspected terrorists processed by the U.S. or by international law enforcement agencies who work with us.
How fast it works: The average response time for an electronic criminal fingerprint submission is about 27 minutes, while electronic civil submissions are processed within an hour and 12 minutes. IAFIS processed more than 61 million ten-print submissions during Fiscal Year 2010.
When it started: IAFIS was launched on July 28, Prior to this time, the processing of ten-print fingerprint submissions was largely a manual, labor-intensive process, taking weeks or months to process a single submission. The FBI has been the national repository for fingerprints and related criminal history data since 1924, when more than 800,000 fingerprint records from the National Bureau of Criminal Identification and Leavenworth Penitentiary were consolidated with Bureau files. The first use of computers to search fingerprint files took place in October 1980.
What’s new: While IAFIS has been an effective system, criminal and terrorist threats have evolved over the past decade. Today’s environment demands faster and more advanced identification capabilities. The Next Generation Identification program, or NGI, represents a quantum leap in fingerprint identification that will help us in solving investigations, preventing crime, and apprehending criminals and terrorists.
NGI—which delivers an incremental replacement of IAFIS—provides automated fingerprint and latent search capabilities, electronic image storage, and electronic exchange of fingerprints to more than 18,000 law enforcement agencies and other authorized criminal justice partners 24 hours a day, 365 days a year. Upon completion, NGI will have the ability to process fingerprint transactions more effectively and accurately.  With the delivery of NGI Increment 4 in the summer of 2014, NGI will effectively replace IAFIS.
Next Generation Identification (NGI)
Identification and Investigative Services
The NGI system, developed over multiple years, is an incremental replacement of the Integrated Automated Fingerprint Identification System (IAFIS) that provides new functionality and improves existing capabilities. 
The FBI’s Criminal Justice Information Services (CJIS) Division operated and maintained IAFIS, which became the world’s largest person-centric biometric database when it was implemented in July Since then, advancements in technology and the changing business needs of IAFIS’s customers necessitated the next generation of identification services. To further advance biometric identification services, the CJIS Division, with guidance from the user community, established the vision for the Next Generation Identification.
This technological upgrade accommodates increased information processing and sharing demands from local, state, tribal, federal, and international agencies. The NGI system offers state-of-the-art biometric identification services and compiles core capabilities that serve as the platform for multimodal functionality.
Advanced Fingerprint Identification Technology (AFIT)
AFIT, deployed on February 25, 2011, enhances fingerprint and latent processing services, increases the accuracy and daily fingerprint processing capacity, and improves system availability. This deployment implemented a new fingerprint matching algorithm which has improved matching accuracy from approximately 92% to over 99.6%. This improvement resulted in over 900 additional matches during the 5-day parallel operations period immediately after deployment. Additionally, the improved accuracy resulted in a 90% reduction in the number of manual fingerprint reviews required by our service providers.
Repository for Individuals of Special Concern (RISC)
RISC, deployed on August 25, 2011, implemented that repository’s rapid search supporting mobile identification. This capability enables officers and agents in the field to screen detainees and criminal suspects against a repository of Wanted Persons, Sex Offenders Registry Subjects, Known or appropriately Suspected Terrorists, and other persons of special interest for rapid identification. Currently, 21 agencies are using this capability. Latest performance metrics show a red hit rate between three to six percent, proving this capability is a valuable first check allowing officers to quickly assess the level of threat an encountered individual poses
Interstate Photo System
The Interstate Photo System (IPS), a compilation of all photos received by the FBI with tenprint transactions, holds over 23 million front-facing photos. Authorized law enforcement agencies may submit a photo image (probe) for a face recognition search in the IPS. Search results are processed automatically (no human intervention) and returned in a ranked candidate list. Information returned in the response is provided as an investigative lead only and is not to be considered a positive identification.
Latents and National Palm Print System (NPPS)
In 2013, the NGI System deployed the new NPPS which contains millions of palm prints that are now searchable on a nationwide basis. The NPPS and improvements in latent fingerprint search performance are providing powerful new and enhanced crime-solving capabilities for more than 18,000 local, state, tribal, and federal law enforcement agencies across the country. In addition, NGI has expanded criminal and civil searches against the Universal Latent File, potentially generating new investigative leads in unsolved and/or cold cases as well as latent enrollment and search enhancements. 
Rap Back Service
The Rap Back Service provides authorized agencies with notification of criminal, and, in limited cases, civil activity of individuals that occurs after the initial processing and retention of criminal or civil transactions. Rap Back does not provide new authority to agencies, including the FBI, for collection of biometric and biographical information. It does, however, implement new response services to notify agencies of subsequent activity for individuals enrolled in the service. Including a more timely process of confirming suitability of those individuals placed in positions of trust and notification to users of criminal activity for those individuals placed on probation or parole.
Iris Recognition (IR)
As the iris of the eye gains momentum as a strong biometric capability, IR is poised to offer law enforcement a new tool to quickly and accurately determine identity. The NGI iris pilot follows the recommendations of the NGI stakeholders and evaluates the technology in an operational setting.

27. What We will be Doing
Part I – Intro and Background Part II - Recording and Classifying Prints Part III - “Lifting” and Preserving Prints Part IV - Reviewing other types of Prints
Watch Amazon Prime Catching Killers – Season 1, Episode 2 (45 min: 10 min)
Watch PBS NOVA – Forensics on Trial:

28. LIP PRINTS

29. VOICE PRINTS
Electronic pulses measured on a spectrograph

30. OTHER PRINTS
Shoe Prints
Palm Prints
Footprints

31. IRIS SCANS and Retinal scans

32. EAR PRINTS