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.
Resolution
Resolution
Respiratory
Related to breathing and exchange of oxygen and carbon dioxide.
Response
A behavior that a canine has been trained to exhibit upon locating the source of a target odor/scent. This behavior may be either passive (sit, stare, down, point) or active (bite, bark, scratch, jump, etc.). (See indication.)
Responsibility
The accountability of a person or other entity for the event or sequence of events that caused the fire or explosion, spread of the fire, bodily injuries, loss of life, or property damage.
Restoration
restoration
reinstatement of the full or partial statement of conformity
result
The product of the forensic service provider. This term is broad and may include observations, data, calculations, interpretations, findings, and opinions.
Result
OSAC Preferred
The product of the forensic service provider. This term is broad and includes observations, data, calculations, interpretations, and opinions.
Also referenced in ANSI/ASB 167 Standard for Reporting Results from Friction Ridge Examinations
results
the product of the forensic service provider
NOTE 1 The term is broad and includes observations, calculations, interpretations, and opinions.
NOTE 2 In forensic toxicology, test/calibration results (observations, calculations, and interpretations) are often separated from opinion results.
Retardation (r)
Retardation Factor (Rf)
retouching
Adding handwritten lines or strokes in order to correct, improve, distort, or alter.
retrace
A stroke written over the preceding stroke, typically in reverse direction.
Retreaded Tire
Retrieve
Behaviors associated with finding and returning prey or objects back to the canine handler or social group.
Retrieve Drive
The subconscious impulse to find and bring prey to the pack leader.
review
consideration of the suitability, adequacy and effectiveness of selection and determination activities, and the results of these activities, with regard to fulfilment of specified requirements (5.1) by an object of conformity assessment (4.2)
review, administrative
An assessment of the non-technical content associated with an examination and report. A NOTE This commonly includes, but may not be limited to, the verification of the presence of all documents listed in the request for examination and the report, the verification of the appropriate marking of all documents, the documentation of chain of custody, case notes, and typographical or other clerical errors.
review, technical
An assessment by another qualified forensic document examiner to review the method(s) and result(s) of the examiner of record to ensure the conclusion(s) rendered are supported. NOTE A technical review commonly includes, but may not be limited to, the adequacy of technical notes, the verification of method(s) used, the determination of the adequacy or limitations of the evidence, the proper use of equipment, whether all pertinent examinations were performed, whether the findings are consistent with the observations noted/recorded during the examination, the applicable nature of any references, and documentation of the performance of the review.
Reviewer
Revised Cambridge Reference Sequence (Rcrs)
A fully corrected version of the original Cambridge Reference Sequence (GenBank# J01415 0 gi:337188) of Anderson et al. (1981) of the human mitochondrial genome (mtDNA), also referred to as the Anderson sequence. The rCRS is GenBank sequence NC_012920; it differs from the original CRS and other complete mtDNA GenBank sequences in that it has eighteen corrected or confirmed nucleotides. It is used for reporting human mtDNA sequences, generally by denoting the differences observed from the rCRS.
Reward
The presentation of an article, toy, food, or praise given to the canine once the detector canine has alerted and responded to the odor(s)/scent(s) for which the canine is trained to detect/locate.
Rgb
Red, Green, Blue used to represent color pixels comprised of a specified number of bitsto represent each of these primary color components.
Rib
ribbon shift
The movement of a multicolored inking ribbon allowing for a change in color to manifest itself in an impressed character. (SWGDOC E07)
ricochet
A surface deflection of a projectile without penetration or perforation of a target
Ridge
A raised portion of the epidermis on the palmar or plantar skin, consisting of one or moreconnected ridge units of friction ridge skin.
Ridge Segment
A section of a ridge that connects two minutiae; a single non-intersecting portion of askeletonized image.
Ridge Tracing
See skeletonized image.
Rietveld Refinement
Riff
The Resource Interchange File Format is a generic file container format that issometimes used in audio and video recordings. The most common implementation ofRIFF is WAV, which uses the file extension '.wav'
Riff
The Resource Interchange File Format is a generic file container format which can be used to store audio data.
Rim Diameter
Rimfire cartridge
Risk
The degree of peril; the possible harm that might occur that is represented by the statistical probability or quantitative estimate of the frequency or severity of injury or loss.
Risk
An uncertain event or condition that, if it occurs, has a negative effect on a softwares reliability and performance.
Risk Assessment
A systematic process for deciding the risk level associated with a particular software or module.
Ritz Stick
Robustness Studies
Experiments performed to measure the capability of a procedure to remain unaffected by small but deliberate variations in method parameters and provide an indication of reliability during normal usage.
Rods
ROI
Region of interest.
Roll
Rolled Fingerprint
A fingerprint image collected by rolling the finger across a livescan platen or paperfingerprint card from nail to nail. Rolls may be from livescan devices or scanned frompaper fingerprint cards.
roller device
Wheel-type components designed to grab and transport paper into and through printers and copiers.
roller marks
Visible or latent indented features in paper resulting from transport rollers in a printing or copying system.
Roller Transport Film
rollerball pen
A writing instrument that uses a tiny, revolving ball to dispense liquid ink onto paper. Gel and ballpoint pens use the same ball mechanism to deposit their ink but use gel- and oil-based ink, respectively.
Rolling Circumference
Rollover
See flameover.