Discover how to select the correct fingerprint powder, the proper dusting and collecting techniques, and how to fill out an evidence card.
By Joe LeFevre
Explore how to collect a fresh or dry blood specimen and prepare it for the crime lab.
By Joe LeFevre
This video illustrates what can happen in a court room when chain-of-custody procedures for collecting evidence are either ignored or not carried out properly.
Learners follow steps to size an interior grease interceptor in a plumbing system that is collecting deleterious materials from a commercial kitchen sink. A brief quiz completes the activity.
By Randy Lorge