Toxicology Services

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The Colorado Bureau of Investigation (CBI) Toxicology Laboratory conducts the analysis of biological fluids for the presence of alcohol and drugs at three different geographic locations (Denver, Grand Junction, and Pueblo) in order to effectively service the Criminal Justice system and the citizens of Colorado.



CBI Toxicology Laboratories earned its international accreditation to 17025 standards from the prestigious American Society of Crime Laboratory Directors-Laboratory Accreditation Board (ASCLD-LAB) in July 2016 and is the only full service Toxicology Laboratory in the State with this recognition.  In addition, all three Laboratories maintain state certification from the Colorado Department of Health and Environment (CDPHE) to perform human performance and postmortem toxicology.


Blood Collection Kits

CBI blood collection kits are composed of a hard cardboard mailer, an inner cardboard box that contains two 10-mL gray top vials (containing a preservative and an anti-coagulant), evidence integrity seals, paperwork, etc. for Law Enforcement Agencies to utilize for the collection of biological fluids.  

These blood collection kits are free of charge to CBI customers; and can be obtained by contacting any one of the three laboratories.


Fee for Service (Law Enforcement First sample analysis and Defense second sample Re-analysis)

With the passage of Legislation HB 14-1340 in March 2014, CBI was authorized to operate a State Toxicology Laboratory and recover its direct and indirect costs through fees for services performed. 

CBI Toxicology Laboratory will re-analyze the second sample blood for the Defense as long as CBI did not conduct the original analysis.  For more information regarding this, please contact the Toxicology Program Manager Dan Anderson 303-463-7020 or email


DUI/DUID cases

CBI Toxicology offers two costs for DUI and DUID investigations: 

Alcohol or Volatiles ($30):  Analyzes for common volatiles such as methanol (wood grain alcohol), ethanol (drinking alcohol), acetone (nail polish remover), isopropanol (rubbing alcohol), and difluoroethane or DFE (keyboard spray cleaner commonly abused as an inhalant).

Drugs of Abuse or DOA ($300):  A nine (9) panel drug category test that encompasses many street drugs as well as prescription drugs. The cost is inclusive of the screen and all the necessary confirmations, regardless of how many drugs are needed to be confirmed.

Barbiturates:  Amobarbital, Butabartial, Butalbital, Pentobarbital, Phenobarbital, & Secobarbital

Benzodiazepines:  Alprazolam, Bromazepam, Chloridiazepoxide, Clonazepam, 7-Aminoclonazepam, Diazepam, Estazolam, Etizolam, Flurazepam, Lormetazepam, Lorazepam, Nitrazepam, Midazolam, Oxazepam, Phenazepam, Temazepam, & Triazolam

Cocaine and Metabolites:  Cocaine, Cocaethylene, Benzoylecgonine & Levimasole

           Marijuana:  delta-9 THC, THC metabolites (Carboxy-THC & Hydroxy-THC)

Methamphetamine:  Methamphetamine & Methylenedioxymethamphetamine (MDMA)

Opiates:  Codeine, Morphine, Hydrocodone, Hydromorphone, & Heroin

Oxycodone: Oxycodone & Oxymorphone

Carisoprodol:  Carisoprodol & Meprobamate

Zolpidem:  Zolpidem​

Prescription Drugs (Rx screen):  Drug Analysis for Methadone, Antihistamines, Antidepressants, Antipsychotics, Anti-seizure, & Muscle relaxants will only be performed with a specific drug request or based upon the known Alcohol and/or Drugs of Abuse results.

      TOTAL cost of any one case with one specimen will be no more than $330.


Drug Facilitated Sexual Assault (DFSA) or Drug Facilitated Crimes (DFC) cases

CBI Toxicology understands the complexity of DFSA testing and will perform the following on a Urine sample as well as perform confirmations on both blood and urine if necessary:


Alcohol or Volatiles


Drugs of Abuse or DOA



Prescription Drugs (Rx screen)

Gamma Hydroxybutyrate (GHB)

Sleeping Zzz’s (Zolpidem, Zaleplon, Zopiclone, and Suvorexant)


TOTAL cost of a DFSA case will be no more than $330.


Expert Disclosure Reports (Rule 16)

CBI Toxicology will provide an Expert Disclosure Report to Attorneys upon written request and is free of charge.


Alcohol Back Extrapolation

CBI Toxicology will provide an Alcohol Back Extrapolation Report to Attorneys upon written request and is free of charge.



All relevant notes, scientific findings, and chain-of-custody documents that constitutes Discovery of a case are released with the Laboratory report and are free of charge.



The Forensic Scientists of CBI will communicate freely with Law Enforcement Agencies and Attorneys as well as all CBI Testimony is free of charge.


Defense Sample Requests

CBI maintains all Toxicology evidence for a period of no less than one-year from date of receipt.  If the defendant or their representative would like a second opinion on the sample, please work directly with the State certified Laboratory of your choice and they in-turn will work with CBI to have the sample released to them.