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Laboratories may vary in the way in which they report mixtures:
- Report the presence of a mixed sample, without an accompanying statistical weight calculation
- Report the presence of a mixed sample and calculate a random match probability (e.g., when a major contributor can be clearly interpreted)
- Report the presence of a mixture and calculate the combined probability of inclusion (such as a random match probability) or a combined probability of exclusion
- Report the presence of a mixed sample and calculate the likelihood ratio of the known contributors to the mixed sample to the unknown contributors to the mixture
Additional Online Courses
- What Every First Responding Officer Should Know About DNA Evidence
- Collecting DNA Evidence at Property Crime Scenes
- DNA – A Prosecutor’s Practice Notebook
- Crime Scene and DNA Basics
- Laboratory Safety Programs
- DNA Amplification
- Population Genetics and Statistics
- Non-STR DNA Markers: SNPs, Y-STRs, LCN and mtDNA
- Firearms Examiner Training
- Forensic DNA Education for Law Enforcement Decisionmakers
- What Every Investigator and Evidence Technician Should Know About DNA Evidence
- Principles of Forensic DNA for Officers of the Court
- Law 101: Legal Guide for the Forensic Expert
- Laboratory Orientation and Testing of Body Fluids and Tissues
- DNA Extraction and Quantitation
- STR Data Analysis and Interpretation
- Communication Skills, Report Writing, and Courtroom Testimony
- Español for Law Enforcement
- Amplified DNA Product Separation for Forensic Analysts
Date Created: June 20, 2023