Related Experiment Video
Updated: Jun 22, 2026
07:56
Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
Published on: January 29, 2018
A perspective on errors, bias, and interpretation in the forensic sciences and direction for continuing advancement.
Bruce Budowle1, Maureen C Bottrell, Stephen G Bunch
1FBI Laboratory, 2501 Investigation Parkway, Quantico, VA 22135, USA. bbudowle@ic.fbi.gov
Journal of Forensic Sciences
|June 3, 2009
Summary
Forensic science disciplines require continuous review to improve quality and address errors like bias. Enhancements in education, training, and clear terminology are recommended for advancing the field.
Area of Science:
- Forensic Science
- Scientific Method
- Ethics
Background:
- The forensic sciences are undergoing increased scrutiny, necessitating a continuous review process.
- Existing infrastructure supports reliability, but clarity in terminology and interpretation is needed.
- Issues of measurement error, human error, contextual bias, and confirmatory bias are critical.
Purpose of the Study:
- To identify areas for improvement in forensic science quality practices and services.
- To discuss challenges related to error and interpretation within forensic disciplines.
- To propose recommendations for advancing the forensic sciences.
Main Methods:
- Discussion of error types (measurement, human, contextual, confirmatory) and interpretation issues.
- Review of existing infrastructure for reliability.
- Development of recommendations for improvement.
Main Results:
- Clarity and definition of terms and interpretation are crucial for better communication.
- National programs in education and training are recommended to focus on science, the scientific method, statistics, and ethics.
- A list of recommendations is provided for advancing the forensic sciences.
Conclusions:
- Continuous review and improvement are essential for the forensic sciences.
- Enhanced education, training, and standardization are key to advancing the field.
- The provided recommendations serve as a starting point for strategic planning in forensic science enhancement.
Related Concept Videos
01:15Systematic Error: Methodological and Sampling Errors
In the case of systematic errors, the sources can be identified, and the errors can be subsequently minimized by addressing these sources. According to the source, systematic errors can be divided into sampling, instrumental, methodological, and personal errors.
Sampling errors originate from improper sampling methods or the wrong sample population. These errors can be minimized by refining the sampling strategy. Defective instruments or faulty calibrations are the sources of instrumental...
Sampling errors originate from improper sampling methods or the wrong sample population. These errors can be minimized by refining the sampling strategy. Defective instruments or faulty calibrations are the sources of instrumental...
01:12Types of Errors: Detection and Minimization
Error is the deviation of the obtained result from the true, expected value or the estimated central value. Errors are expressed in absolute or relative terms.
Absolute error in a measurement is the numerical difference from the true or central value. Relative error is the ratio between absolute error and the true or central value, expressed as a percentage.
Errors can be classified by source, magnitude, and sign. There are three types of errors: systematic, random, and gross.
Systematic or...
Absolute error in a measurement is the numerical difference from the true or central value. Relative error is the ratio between absolute error and the true or central value, expressed as a percentage.
Errors can be classified by source, magnitude, and sign. There are three types of errors: systematic, random, and gross.
Systematic or...
01:22Eyewitness Memory
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 like a...
One such error is memory distortion, which occurs because human memory does not function like a...
01:29Bias in Epidemiological Studies
Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:
01:20Random and Systematic Errors
Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
01:20Random and Systematic Errors
Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...