DNA HOMEWORK

1) DNA may be found in various forms in conjunction with the crime scene, the victim, or the offender. Explain the

evidence collection and preservation procedures associated with the following evidentiary items:

  • Liquid Blood
  • Dried Blood
  • Other biological fluids (saliva, urine, fecal, tears, ear wax, sweat, vaginal secretions, semen)
  • Hair
  • Tissues, Bones, and Teeth

2) How is DNA used in reference to processing unidentified remains? What are potential sources of DNA from victims?

3) Why must the utmost care be exercised during the identification, collection, and processing of biological evidence?

4) Describe some contemporary best practices in terms of evidence handling with biological evidence.