Controlled Substances


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Standard (Static) Proficiency Test Design: $140

Declared Double Blind Proficiency Test Design: $180

Tests are available for Fall 2018 Late Purchase ($215 Static / $255 DDB). Please contact Forensic Assurance to order late purchase tests.

Description:  Each proficiency test will contain two unknown samples to analyze for the possible presence and identification of a controlled substance(s).  The samples may be powders, solids, plant materials, or other forms that are routinely encountered in a forensic laboratory.  Participants are requested to identify the controlled substances using their laboratory procedures and instrumentation.


Fall 2017 Controlled Substances Proficiency Test
Distribution: week of November 6, 2017
Answer Submission Deadline: February 5, 2018

Spring 2018 Controlled Substances Proficiency Test
Distribution: week of May 7, 2018

Answer Submission Deadline: August 6, 2018


Fall 2018 Controlled Substances Proficiency Test

Purchase Deadline: March 1, 2018
Distribution: week of November 5, 2018

Answer Submission Deadline: February 4, 2019


Standard Proficiency Test Design: Each forensic practitioner will receive the same test samples as others in their laboratory, with the correct answers being the same. The test will be comprised of some of the same proficiency testing items used in the declared double blind test design, and the samples that are used will be different for every testing cycle. The static proficiency tests will have the same purchase deadlines, distribution dates and answer submission deadlines as the declared double blind test designs.

Declared Double Blind Test Design: Each forensic practitioner will receive a test composed of randomly selected unknown and/or known proficiency testing items, with the correct answers being specific to each test.  Participants will be unable to gain information regarding the answers to their test through discussions with others participating in the same testing cycle, or with those administering the test.  These blind elements are incorporated into the design of our tests to reduce the effects of bias on testing results. Forensic Assurance proficiency tests are declared (the participant knows that they are taking a test).