Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Eyewitness Memory01:22

Eyewitness Memory

570
Eyewitness memory refers to the recollection of events by someone who has directly witnessed them, often serving as critical evidence in legal settings. This type of memory is commonly used in criminal cases where a witness describes details like a suspect's appearance, clothing, or behavior during a crime. However, despite its perceived reliability, eyewitness memory is prone to significant errors.
One such error is memory distortion, which occurs because human memory does not function...
570

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Distribution and Accessibility of Hospital-Based Emergency Departments for Paediatric Patients in Rural and Remote Western Australia: A Geographic Analysis.

Emergency medicine Australasia : EMA·2026
Same author

Documenting Oral Health-Related Life Experiences to Promote Positive Intergenerational Interactions.

Gerodontology·2026
Same author

Barriers to oral health service access for rural and remote Australian children: a mixed-methods systematic review.

Rural and remote health·2026
Same author

Deprescribing in Older People: A Clinical Practice Guideline Summary.

The Medical journal of Australia·2026
Same author

Hospitalisation trends for falls and facial fractures in elderly Australian: A national ecological analysis, from 2013-14 to 2022-23.

Archives of gerontology and geriatrics·2026
Same author

Development and pilot use of a novel complexity checklist for patients with special healthcare needs in Australia and New Zealand.

British dental journal·2025

Related Experiment Video

Updated: Mar 22, 2026

Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm
09:49

Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm

Published on: December 24, 2015

14.7K

Benchmarking forensic rulers and photographic techniques.

Janae Barns1, Estie Kruger1, Marc Tennant1

  • 1International Research Collaborative, Oral Health and Equity, Department of Anatomy, Physiology and Human Biology, The University of Western Australia, Nedlands, 6009, Western Australia, Australia.

Journal of Forensic and Legal Medicine
|April 25, 2016
PubMed
Summary

Forensic ruler accuracy can vary with temperature, with greater distortion at colder temperatures. Proper photographic techniques, like positioning the camera directly above, minimize distortion for accurate evidence measurement.

Keywords:
BenchmarkForensic sciencePhotography

More Related Videos

A Standardized Approach to Extra-Oral and Intra-Oral Digital Photography
06:49

A Standardized Approach to Extra-Oral and Intra-Oral Digital Photography

Published on: July 22, 2022

10.9K
A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
06:41

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis

Published on: March 9, 2015

9.5K

Related Experiment Videos

Last Updated: Mar 22, 2026

Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm
09:49

Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm

Published on: December 24, 2015

14.7K
A Standardized Approach to Extra-Oral and Intra-Oral Digital Photography
06:49

A Standardized Approach to Extra-Oral and Intra-Oral Digital Photography

Published on: July 22, 2022

10.9K
A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
06:41

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis

Published on: March 9, 2015

9.5K

Area of Science:

  • Forensic Science
  • Measurement Science

Background:

  • Accurate measurement of evidence is crucial in forensic investigations.
  • Forensic rulers are essential tools for scene documentation.
  • Understanding ruler limitations and photographic distortion is vital for reliable data.

Purpose of the Study:

  • To evaluate the accuracy of American Board of Forensic Document Examiners (ABFO) rulers.
  • To assess photographic distortion under simulated field conditions.
  • To establish baseline accuracy for forensic ruler use in investigations.

Main Methods:

  • Tested ABFO rulers from two manufacturers against gold standards at varying temperatures (-14°C to 40°C).
  • Photographed rulers at different angles to evaluate reproducibility and angular distortion.
  • Analyzed dimensional variations and photographic distortions.

Main Results:

  • Rulers showed a 0.28% dimensional variation at room temperature.
  • Increased distortion was observed at colder temperatures.
  • Photographs taken directly above rulers (6-10° distortion) exhibited minimal distortion, unaffected by time or background color.

Conclusions:

  • Temperature significantly impacts forensic ruler accuracy.
  • Angular distortion in photography requires further investigation and mitigation strategies.
  • Enhanced training is necessary for crime scene investigators on accurate evidence documentation techniques.