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- The technique or theory being offered as evidence must be grounded in testing methodology consistent with the relevant discipline.
- The scientific testimony offered by the expert must be consistent with methods and procedures of science.
- The theories behind the scientific knowledge offered in court must be based on the scientific method and properly validated.
The validity of the chosen discipline's methodology and techniques used in the case may be questioned before trial. The judge may hear testimony from experts on both sides and may rule on whether the proposed technique is scientifically valid and reliable or is "junk science" and therefore inadmissible.
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