1. Surface Wipe Sampling
This method involves wiping specific surfaces with a specialized sampling cloth or swab. The cloth collects any potential residue present on the surface, and it is then sent to a laboratory for analysis.
2. Air Sampling
Air sampling is performed by using specialized equipment that collects air samples in the vicinity of the area being tested. The samples are then analyzed in a laboratory to determine if methamphetamine particles or vapors are present.
3. Bulk Sampling
In cases where there is visible residue, such as powder or crystalline substances, bulk sampling is conducted. This involves collecting a sample of the material and sending it to a laboratory for analysis.