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Special Situations
National Institute of Justice (NIJ) (see reuse policy).
Procedures for collecting wet stains on absorbent substances are as follows:
- Scoop a thin layer of soil (or sand).
- Allow to thoroughly air-dry.
- Package in bindle paper.
For Liquid Containers:
- Empty liquid containers by poking a hole in the bottom to avoid liquid contact with the mouth area.
- Request test for both DNA and latent fingerprints.
- Mark aluminum cans for "Room Temperature Storage," as cold or frozen storage causes condensation on metal, which may dilute biological evidence.
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 9, 2023