Analysis of Marijuana Survey

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The Organization of Scientific Area Committees (OSAC) for Forensic Science Seized Drugs Subcommittee is collecting information on current forensic practices in regards to the analysis of Cannabis, in an effort to develop a consensus-based standard that is useful and practical. We appreciate your time and thank you in advance for taking the time to answer these questions related to your laboratory’s practices and policies.

Definitions

Qualitative with decision point: conduct only a qualitative test using a decision point (e.g. positive/negative, Marijuana/inconclusive), without reporting a numerical value or uncertainty. (This may also be referred to as a semi-quantitative method.)

Quantitative: report a numerical value with an associated uncertainty

For the purpose of this survey, Marijuana refers to Cannabis with a THC content above the statutory or decision point threshold.

General Questions

The purpose of this section is to obtain general information about the forensic science service provider in regards to the type of services offered to identify Marijuana. Specifically, this section refers to jurisdictional influences and the matrices being evaluated.

What is your primary affiliation as a forensic science service provider? (Select one)

Federal

State

County

City

Private

Decline to Answer

Other:

Clear selection

What is the statutory threshold for THC content in plant material in your jurisdiction? (Select one)

0.3%

Other:

Clear selection

Does your jurisdiction have any other specific statutory language related to THC content? (Select one)

Yes

Clear selection

Please provide an example the language regarding THC content if applicable to the previous question.

Which of the following are part of your analytical scheme? (Select all)

Plant Material

Liquid / Oil

Edibles

Concentrates

Other

Weight

Macroscopic Exam

Microscopic Exam

Duquenois-Levine

4-Aminophenol (4-AP) Color Test

GC-MS (full scan)

GC-MS (SIM)

LC-UV/Vis

LC-MS

TLC

Other

Please list the other techniques or sample matrices from the previous question.

When analyzing suspected Cannabis (Marijuana) cases, what type of analysis is performed at your laboratory? (Select one) *

Identification of THC (or other cannabinoid) WITHOUT assessing concentration

Quantitative or qualitative analysis (with decision point) of THC concentration

Both

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