Packaging for Transportation
Use plastic bags for the transportation of biological evidence only when there are excessive body fluids and possible contamination of people and other evidence items. Use paper packaging if saturation is not a possibility.
Never package wet or moist body fluids in plastic bags for long periods of time. This promotes bacterial growth and evidence contamination, which can lead to DNA degradation.
Transportation and Short-Term Storage
Before collecting any evidence at a crime scene, secure a place for temporary storage. This will help to prevent any degradation or contamination of biological evidence.
Direct sunlight and warmer conditions may cause DNA to degrade more rapidly. Avoid storing evidence in places that may get hot, such as the trunk of a police car. To best preserve biological evidence, store in a cool dry environment.
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