4-AP Cannabis Field Tests
The Department of Forensic Science (DFS) received grant funding from the Department of Criminal Justice Services to purchase 4-AP (also known as Swiss or Cannabis Typification) field test kits for distribution to law enforcement agencies. These kits can be used as a tool to assist law enforcement in differentiating between marijuana and industrial hemp, which are both varieties of cannabis.
Memo on Distribution of 4-AP Field Tests
Information on the 4-AP kits that DFS distributed to law enforcement. (11/8/2019)
4-AP Field Test Instructional Video
A training video for officers on the use of the 4-AP test, created with the Virginia State Police.
4-AP Field Test Instruction Sheet
An instruction sheet developed by DFS for law enforcement officers in Virginia.
Memo on Marijuana Field Tests and Marijuana Analysis and Reporting
Information on the use of marijuana field tests (Duquenois-Levine) and the Department’s analytical scheme for marijuana. (5/23/19)