- Course Introduction
- 01: Evidence & DNA
- 02: Forensic Biology
- 03: DNA Extraction & Quantitation
- 04: DNA Amplification
- 05: Amplified DNA Product Separation
- 06: STR Data Analysis & Interpretation
- 07: Population Genetics & Statistics
- 08: Communicating Results
- 09: Other DNA Markers & Technologies
- Course Resources
- Laboratory Training Manual
President's DNA Initiative
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Advancing Justice Through DNA Technology
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Advancing Justice Through DNA Technology
DNA Analyst Training
Introduction
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Evidence & DNA >Introduction
Responding to a crime scene is a critical step in the scientific investigation of a case. Unless the crime scene response is handled correctly, the investigation may be severely compromised. Investigators and crime scene specialists are responsible for identifying, securing, collecting and preserving the evidence that is submitted to the crime laboratory. The investigator’s knowledge in crime scene documentation and the variety of methods for the collection and processing of all types of evidence is crucial. Additionally, many times the investigator must make timely decisions whether to obtain written consent or a search warrant, so that the evidence will be admissible and not subject to a motion to suppress.
Objectives
Upon successful completion of this unit of instruction, the student shall be able to:
- Understand the importance of protecting and preserving the scene to ensure the integrity of the physical evidence within.
- Understand the different types of crime scenes and the types of evidence encountered in these scenes.
- Understand the importance of scene documentation through photography, video recording and sketching.
- Understand the different methods used for collection and preservation of evidence.
