One of the roles of a crime scene investigator in supporting national operations of the Australian Federal Police (AFP) is the forensic investigation of illicit drug-related importation offences. This requires a need for their specialist skills and experience in the physical evidence aspects of Controlled Operations. These operations are now managed through specific legislative requirements. It is not our intention to cover all the legal or investigative aspects of these operations in this chapter; however, the nature of the drug-related crime scenes encountered and associated procedures and methods employed are revealed and discussed.