NIJ Training: Crime Science and DNA Basics for Forensic Analysts

Evidence & DNA Intro Image (Double Helix and Test Tube)

This course provides information in the two modules Evidence at the Crime Scene and History and Types of Forensic DNA Testing.

The first module addresses the importance of documenting, protecting, and preserving the scene and what types of evidence can be found there and methods used for its collection and preservation.

The second module addresses the historical use and disadvantages of restriction fragment length polymorphisms (RFLP), the method and sequence of steps in which DNA profiles are developed, and the concept of short tandem repeats (STR) testing and its advantages over earlier methods.

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