Iowa Department of Public Safety Division of Criminal Investigation

DNA Casework Section

Latent Prints & Impression Identification


Questioned Documents


Trace Evidence


DPS Main Page

Iowa Death Investigator's Association

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  • Seal, initial and date all containers of evidence.
  • Place the suspect or victim name on the evidence containers that contain the biological specimen (cup, bottle, grey topped tube & ect.).
  • List specific requests for analysis in the comment section when logging in the evidence.
  • For alcohol analysis place urine samples in a grey topped tube with 100 mg sodium fluoride.
  • “Samples submitted to the DCI Laboratory Toxicology section will be tested in accordance with the current workflow and testing capabilities of the Toxicology Section.  Routine analysis of blood samples typically includes both alcohol and drug analysis.  Routine analysis of urine samples includes drug analysis and alcohol analysis by request.”
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