Discover how to select the correct fingerprint powder, the proper dusting and collecting techniques, and how to fill out an evidence card.

Explore how to collect a fresh or dry blood specimen and prepare it for the crime lab.

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.

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.