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 The Organization of Scientific Area Committees for Forensic Science
    
      
  OSAC Lexicon

The OSAC Lexicon is a compendium of forensic science terms and definitions. This terminology tool was created to help bring consistency and understanding to the way terms are used by the various forensic science. Use of the OSAC Lexicon does not replace the need to reference the original published source.

The terms and definitions in the OSAC Lexicon come from the published literature, including documentary standards and technical reports. It is continually updated with the latest work from OSAC units, as well as terms from newly published documentary standards and standards elevated to the OSAC Registry.

Gradually terms are evaluated and harmonized by the OSAC to a single term. This process results in an OSAC Preferred Term. An OSAC Preferred Term is a term, along with its definition, that has undergone review and evaluation by the FSSB Terminology Task Group and has been approved by the FSSB. The FSSB recommends that subcommittees use OSAC Preferred Terms when drafting standards.

The OSAC Lexicon should be the primary resource for terminology and used when drafting and editing forensic science standards and other OSAC work products.



Keyword Search
  
  
  Searches term, definition, and source for any of these keywords.
  Term
  
  
  Searches term name.
  OSAC Committee
  
  
  - Any -Bloodstain Pattern AnalysisCrime Scene Investigation & ReconstructionDigital EvidenceDogs & SensorsFacial and Iris IdentificationFire & Explosion InvestigationFirearms & ToolmarksFootwear & TireForensic AnthropologyForensic Document ExaminationForensic NursingForensic OdontologyForensic ToxicologyFriction RidgeFSSBHuman Forensic BiologyIgnitable Liquids, Explosives & Gunshot ResidueInterdisciplinaryMedicolegal Death InvestigationSeized DrugsSpeaker RecognitionTrace MaterialsVideo/Imaging Technology & AnalysisWildlife Forensic Biology
  Standard
  
  
  Searches standard designation number.
  Items Per Page
  
  
  5102550
  Only OSAC Preferred

AllABCDEFGHIJKLMNOPQRSTUVWXYZ0-9#

Displaying 1 - 50 of 108
      Export results (CSV)N-Alkane Product
  A class of ignitable liquid characterized in ASTM E1618-11 "Standard Test Method for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass Spectrometry" as being comprised almost exclusively of normal alkane hydrocarbons. Examples of such products are some printing ink solvents, candle oils, and some copier toners.
            
            Committee
                    Trace Materials

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1618-11 Standard Test Method for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass Spectrometry. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2011.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Nails
  A skeleton of some kinds of triangles, elongated, usually pointed with a short head usually thicker or broader.
            
            Committee
                    Seized Drugs

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E2125-19 Standard Practice for Microcrystal Testing in Forensic Analysis for Phencyclidine and Its Analogues. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2019.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Nails
  A skeleton of some kinds of triangles, elongated, usually pointed with a short head usually thicker or broader
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1732-24 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2024.
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Namus
  The National Missing and Unidentified Persons System, which is a national repositoryfor missing persons and unidentified decedent records. It is operated by the NationalInstitute of Justice. See www.namus.gov.
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/NIST-ITL 1-2011 Update:2015 Data Format for the Interchange of Fingerprint, Facial & Other Biometric Information. ANSI/National Institute of Standards and Technology, 2011.
                          Source link
      Term link
  Naphthenic-Paraffinic Product
  A class of ignitable liquid characterized in ASTM E1618-11 "Standard Test Method for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass Spectrometry" as having a predominant pattern comprised mainly of branched chain (isoparaffinic) and cyclic (naphthenic) alkanes.
            
            Committee
                    Trace Materials

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1618-11 Standard Test Method for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass Spectrometry. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2011.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Narcotics
  Medical definition: A drug (as opium or morphine) that at moderate doses dulls the senses, relieves pain. Operational usage: An illicit drug (such as marijuana or cocaine) subject to restriction similar to that of addictive narcotics whether physiologically addictive and narcotic or not [1].
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Narcotics Canine
  A dog trained to detect illicit drugs.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Nares
  The nostrils.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Nares
  The nostrils.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 085 Standard for Detection Canine Selection, Kenneling, and Healthcare. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  Nasopharynx
  The upper part of the pharynx connecting with the nasal cavity above the soft palate.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Nasopharynx
  The upper part of the pharynx connecting with the nasal cavity above the soft palate.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 085 Standard for Detection Canine Selection, Kenneling, and Healthcare. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  National Association Of Medical Examiners (Name)
  International professional organization of physician medical examiners, medicolegal death investigators, and death investigation system administrators that promulgates education and professionalism in medicolegal death investigation and has established and publishes a set of forensic autopsy performance standards. NAME offers a voluntary inspection and accreditation program for medicolegal death investigation offices (see: www.thename.org).
            
            Committee
                    Medicolegal Death Investigation

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 125 Organizational and Foundational Standard for Medicolegal Death Investigation. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  National Incident Management System Nims
  A systematic, proactive approach to guide departments and agencies at all levels of government, nongovernmental organizations, and the private sector to work together seamlessly and manage incidents involving all threats and hazardsregardless of cause, size, location or complexityin order to reduce the loss of life, property and harm to the environment.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  National Institute Of Standards And Technology (Nist)
  A non-regulatory federal agency within the U.S. Department of Commerce. NIST's mission is to promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve quality of life. The Dogs and Sensors Subcommittee of the Organization of Scientific Area Committees (managed by NIST) focuses on standards and guidelines related to performance of deployed canines, canine handlers and canine teams, and optimization of their integration with electronic detection devices.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Native File Format
  The original format of a file.
            
            Committee
                    Facial and Iris Identification

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E2916-19e1 Standard Terminology for Digital and Multimedia Evidence Examination. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2019.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Native File Format
  The original format of a file
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1732-24 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2024.
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Native Scanning Resolution
  The scanning resolution used by a specific AFIS, live-scan reader, or other image capturedevice and supported by the originator of the transmission.
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/NIST-ITL 1-2011 Update:2015 Data Format for the Interchange of Fingerprint, Facial & Other Biometric Information. ANSI/National Institute of Standards and Technology, 2011.
                          Source link
      Term link
  Natural Crepe Rubber
  A crude form of coagulated natural rubber having a crinkled or knobby texture.
            
            Committee
                    Footwear & Tire

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Terminology Used for Forensic Footwear and Tire Evidence. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2019.
                          Source link
      Term link
  Natural Distractors
  Distractor odors that are naturally occurring in the search environment that are not placed by evaluators, observers or participants. Animal remains that were not placed by someone, holes that were dug by wild animals, feces from other animals, etc. (See white noise.)
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Natural Distractors
  Distractor odor(s)/scent(s) that are naturally occurring in the search environment that are not placed by evaluators, observers or participants. Animal remains that were not placed by someone, holes that were dug by wild animals, feces from other animals, etc.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 092 Standard for Training and Certification of Canine Detection of Explosives. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  Natural Distractors
  Distractor odor(s)/scent(s) that are naturally occurring in the search environment that are not placed by evaluators, observers or participants. Animal remains that were not placed by someone, holes that were dug by wild animals, feces from other animals, etc.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 088 General Guidelines for Training, Certification, and Documentation of Canine Detection Disciplines. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2020.
                          Source link
      Term link
  Natural fibers
  a class name for various genera of fibers (including filaments) of: (1) animal (that is, silk and wool); (2) mineral (that is, asbestos); or (3) vegetable origin (that is, cotton, flax, jute, and ramie).
            
            Committee
                    Trace Materials

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E2228-23a Standard Guide for Microscopical Examination of Textile Fibers. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2023.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Natural Fibers
  A class name for various genera of fibers (including filaments) of: (1) animal (that is, silk and wool); (2) mineral (that is, asbestos); or (3) vegetable origin (that is, cotton, flax, jute, and ramie)
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1732-24 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2024.
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Natural Rubber
  A natural product derived from latex tapped from rubber trees.
            
            Committee
                    Footwear & Tire

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Terminology Used for Forensic Footwear and Tire Evidence. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2019.
                          Source link
      Term link
  NCIC
  National Crime Information Center of the FBI.See www.fas.org/irp/agency/doj/fbi/is/ncic.htm
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/NIST-ITL 1-2011 Update:2015 Data Format for the Interchange of Fingerprint, Facial & Other Biometric Information. ANSI/National Institute of Standards and Technology, 2011.
                          Source link
      Term link
  Neat
  not diluted or mixed with any other substance.
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1732-24 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2024.
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Needles (Acicular)
  Long, thin crystals with pointed ends.
            
            Committee
                    Seized Drugs

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E2125-19 Standard Practice for Microcrystal Testing in Forensic Analysis for Phencyclidine and Its Analogues. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2019.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Needles (Acicular)
  Long, thin crystals with pointed ends.
            
            Committee
                    Seized Drugs

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1969-19 Standard Practice for Microcrystal Testing in Forensic Analysis for Methamphetamine and Amphetamine. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2019.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Needles (Acicular)
  Long, thin crystals with pointed ends.
            
            Committee
                    Seized Drugs

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1968-19 Standard Practice for Microcrystal Testing in Forensic Analysis for Cocaine. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2019.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Needles (Acicular)
  Long, thin crystals with pointed ends
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1732-24 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2024.
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Negative Control
  A known odor/scent sample that is used to assess the canine's proficiency in a non-matching odor/scent scenario. The canine is expected to give a negative response.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Negative Control
  A material of established origin that is used to confirm that a procedure does not produce an unintended result.
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E3255-21 Standard Practice for Quality Assurance of Forensic Science Service Providers Performing Forensic Chemical Analysis. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2021.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Negative Control
  A test sample similar to the case sample(s) that does not contain the analyte(s) of interest at a reportable concentration. If an internal standard is used in the procedure, it shall be included in the negative control
            
            Committee
                    Forensic Toxicology

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 054 Standard for a Quality Control Program in Forensic Toxicology Laboratories. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  Negative Control
  A known scent sample that is used to assess the canine's proficiency in a non-associated scent scenario. The canine is expected to give a negative response.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 026 Standard for Training and Certification of Canine Detection of Humans: An Aged Trail Using Pre-scented Canines. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  Negative Control
  A known scent sample that is used to assess the canine's proficiency in a non-associated scent scenario. The canine is expected to give a negative response.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 024 Standard for Training and Certification of Canine Detection of Humans: Location Check Using Pre‐scented Canines. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  Negative Impression
  An impression that has resulted from the removal of a substance from a substrate by a footwear outsole or tire tread.
            
            Committee
                    Footwear & Tire

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Terminology Used for Forensic Footwear and Tire Evidence. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2019.
                          Source link
      Term link
  Negative Location Check
  A type of site check in which no existing scent matches the human scent on the article presented to the canine.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Negative Location Check
  A type of site check in which there is no existing scent associated to the human scent on the article presented to the canine.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 024 Standard for Training and Certification of Canine Detection of Humans: Location Check Using Pre‐scented Canines. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  Negative Response
  An alert/indication given by a canine showing no match to odor/scent, i.e., no matching trail, no substance present, etc.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Negative Response
  A behavior exhibited by a canine showing no association to target scent, i.e., no associated target trail. This may be a specifically trained behavior or the absence of a positive response
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 026 Standard for Training and Certification of Canine Detection of Humans: An Aged Trail Using Pre-scented Canines. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  Negative Response
  A behavior exhibited by a canine showing no association to target scent, i.e., no associated target trail. This may be a specifically trained behavior or the absence of a positive response
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB 024 Standard for Training and Certification of Canine Detection of Humans: Location Check Using Pre‐scented Canines. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2021.
                          Source link
      Term link
  Negative Testing
  Checking to confirm that incorrect or inverse inputs yield the expected output (e.g., inputting a letter when a number is required, and observing an error message).
            
            Committee
                    Human Forensic Biology

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASB Best Practice Recommendation 114 Best Practice Recommendations for Internal Validation of Software used in Forensic DNA Laboratories. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2022.
                          Source link
      Term link
  Negative-Pressure
  Mode of dynamic headspace concentration extraction using a vacuum to draw the headspace through the adsorbent media.
            
            Committee
                    Ignitable Liquids, Explosives & Gunshot Residue

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1413-19 Standard Practice for Separation of Ignitable Liquid Residues from Fire Debris Samples by Dynamic Headspace Concentration onto an Adsorbent Tube. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2019.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Negatives
  A trained final response by a canine to a non-matching odor/scent
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link
  Nema
  The National Electrical Manufacturers Association.
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/NIST-ITL 1-2011 Update:2015 Data Format for the Interchange of Fingerprint, Facial & Other Biometric Information. ANSI/National Institute of Standards and Technology, 2011.
                          Source link
      Term link
  Network
  A group of two or more computers or other digital devices that communicate with each other electronically to transfer and share data.
            
            Committee
                    Facial and Iris Identification

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E2916-19e1 Standard Terminology for Digital and Multimedia Evidence Examination. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2019.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Network
  A group of two or more computers or other digital devices that communicate with each other electronically to transfer and share data
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1732-24 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2024.
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Network Traffic
  Network communications that are carried over wired or wireless networks between hosts or devices.
            
            Committee
                    Facial and Iris Identification

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E2916-19e1 Standard Terminology for Digital and Multimedia Evidence Examination. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2019.
                          Source link
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Network Traffic
  Network communications that are carried over wired or wireless networks between hosts or devices
            
            Committee
                    Interdisciplinary

            Date Added to Lexicon
                                06/12/2023

            **Standard Source** (Designation Number Title of Standard. Publisher, Place, Year.)
          ANSI/ASTM E1732-24 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2024.
                  *Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*
      Term link
  Neuter
  To remove the canine's reproductive organs.
            
            Committee
                    Dogs & Sensors

            Date Added to Lexicon
                                06/12/2023

            **Technical Report/Other Source** (Author, Title of report. Publisher, Year.)
          ANSI/Academy Standards Board (ASB), Crime Scene/Death Investigation - Dogs and Sensors - Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO 80904, 2017.
                          Source link
      Term link

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