Iowa Department of Public Safety Division of Criminal Investigation
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Alcohol & Drug Analysis


If you can get blood, that would be best for the alcohol determination reported as (grams per 100mL of alcohol).

The DCI Laboratory has added the capability to analyze for cannabinoids in blood samples. Currently all blood samples, at the DCI Criminalistics Laboratory are being analyzed  for alcohol, inhalants,cannabinoids and amphetamines.    Refer to Private Laboratories Testing if analyses for other drugs in blood are needed. If so, the samples can be sent to a private lab at your agency’s expense.

The Cannabinoids, in blood samples, we are looking for:

delta9-tetrahydrocannabinol (THC)
11-hydroxy-delta9-tetrahydrocannabinol (a metabolite of THC)
11-nor-9-carboxy-delta9-tetrahydrocannabinol (a metabolite of THC)

The Amphetamines, in blood samples, we are looking for:

3,4-Methylenedioxymethamphetamine (MDMA)
3,4-Methylenedioxyamphetamine (MDA)
3,4-Methylenedioxyethylamphetamine (MDEA)

Refer to Private Laboratories Testing if drugs are needed. These cases will need to be sent to a private lab at your expense for the analyses.


January 1, 2008 - Alcohol Policy Click to read Policy Statement (required)

Click here to view training video and then click here to fill-in the required statement and submit.

Go to the breath alcohol DCI site, Do a search of your name in the officer training records – you will see here if you were trained.

Alcohol analysis samples MUST be in a gray stoppered tube with:

  • 100 mg of Sodium flouride
  • 20 mg of Potassium Oxalate or some other equivalent preservative

Two results (grams/57mL) (grams/67mL) are reported when the urine sample is a first or random void. One result (grams/67mL) is reported when the urine sample is a 2nd void. Due to physiological variability, urine alcohol calculations tend to be rather conservative. Due to potential for production of alcohol post collections, urine sample storage (1% NaF) is critical.


Blood Alcohol Analysis TX-BAC
Urine Alcohol Only TX-UA
Urine Alcohol & Drug Screen TX-UA, TX-UD
Urine Drug Screen Only TX-UD


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