- 01 Introduction
- 02 Biology of DNA
- 03 Practical Issues Specific to DNA Evidence
- 04 Introduction to the Forensic DNA Laboratory
- 05 Assuring Quality in DNA Testing
- 06 Understanding a Forensic DNA Lab Report
- 07 Statistics and Population Genetics
- 08 Mitochondrial DNA & Y-STR Analysis
- 09 Forensic DNA Databases
- 10 Collection of DNA Evidence from Suspects and Arrestees
- 11 Pretrial DNA Evidence Issues
- 12 Victim Issues
- 13 Trial Presentation
- 14 Postconviction DNA Cases
- 15 Emerging Trends
Principles of Forensic DNA
for Officers of the Court
for Officers of the Court
Module 6 :: DNA Lab Report
Topic 3 :: The Significance of DNA Results as Evidence
Statistical Statement
If the profiles from the evidence sample and the known sample are the same, reports will usually include a statistical statement such as—
The frequency estimate of the DNA profile found in sample A is:
1 in X for Caucasians
1 in Y for African Americans
1 in Z for Hispanics
The larger the number in the frequency estimate, the more rare the genetic profile detected in the evidence (and the known sample). For more details on statistics and statistical reporting, see Module 7.
