DUI / DWI Split Sample Retesting for Defense Attorneys
When a DUI or DWI case hinges on blood or urine evidence, independent verification can change the outcome. ReliaLab Test provides DUI blood and urine sample retesting exclusively for criminal defense attorneys, delivering accurate, court-defensible results you can rely on.
We specialize in split sample testing and independent reanalysis of DUI blood and urine samples for alcohol, controlled substances, prescription medications, and poly-drug cases. Our forensic toxicology laboratory performs blood alcohol retesting, BAC verification, and DUI drug test reanalysis to identify errors, contamination, degradation, or analytical uncertainty in the original test.
Challenge DUI Blood & Urine Evidence with Confidence
State-run and law enforcement laboratories are not immune to mistakes. Faulty calibration, preservative failure, improper storage, chain-of-custody issues, and analytical uncertainty can all compromise DUI blood and urine test results. ReliaLab Test conducts independent forensic toxicology testing to verify accuracy and expose weaknesses in the prosecution’s evidence.
Our services include:
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DUI blood sample retesting
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Split blood sample testing
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Urine sample reanalysis for DUI/DWI
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Blood alcohol content (BAC) retesting
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DUI drug and controlled substance testing
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THC and prescription drug blood testing
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Independent verification of DUI blood evidence
Built for Criminal Defense Strategy
ReliaLab Test is an independent forensic toxicology lab focused on DUI defense support. We work directly with attorneys to ensure testing meets evidentiary standards, withstands cross-examination, and supports motions to suppress or impeach chemical test results.
Our laboratory provides:
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Independent DUI blood and urine testing
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Defense-focused toxicology analysis
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Clear, litigation-ready reporting
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Expert witness testimony when required
Why Defense Attorneys Choose ReliaLab Test
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Over 16 years of forensic testing experience
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Independent laboratory — not affiliated with law enforcement
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Proven expertise in DUI blood alcohol and drug reanalysis
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Trusted litigation support toxicology lab
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Based in Nashville, Tennessee, serving attorneys nationwide
The Best Defense Is a Good Offense
Don’t accept the prosecution’s chemical test at face value. Verify it. Challenge it. Defend your case with ReliaLab Test.
Independent DUI blood and urine split sample retesting gives you the scientific foundation to dispute results and protect your client’s rights.
ReliaLab Test — The Best Defense Is a Good Offense.
Can I have my split blood sample retested for BAC, Blood Alcohol Concentration (BAC test) and or Substance?
You or your DUI attorney can reach out to ReliaLab Test for answers.
Contact ReliaLab Test at 615-332-8838 and speak with our professional!
* Blood samples may be shipped to ReliaLab Test 3656 Trousdale Drive, Suite 109, Nashville, TN 37204
Please note the DUID or DUI BAC test panels below.
DUID Routine Panel Blood (Quantitative)
Forensic analysis of common illicit and prescription drugs.
Includes: amphetamines/methamphetamine (includes MDMA/MDA), cocaine & metabolite, opiates, fentanyl, phencyclidine (PCP) barbiturates, benzodiazepines, oxycodone, methadone.
Contact our office to order this test
Alcohol DUI/DUID Testing/BAC Blood (Quantitative)
Volatiles Panel Blood (Quantiative)
Forensic analysisEthyl Alcohol, Acetone, Isopropanol, Methanol
Contact our office to order this test
Expanded Panel + DUID ToxPath Blood (Quantitative)
Amphetamines, Barbiturates, Benzodiazepines, Buprenorphine, Carisoprodol/meprobamate, Cocaine, Fentanyl/norfentanyl, Marijuana (THC), Methadone, Opiates, Oxycodone/oxymorphone, PCP, Volatiles, Tramadol, Zolpidem, opioids, narcotic analgesic, stimulants, antidepressants, antipsychotics, antihistamines, anxiolytics, anticonvulsants (Gabapentin), antihypertensive, muscle relaxants, antitussives, sedative/hypnotics, dissociative anesthetic, hallucinogen, TCA’s and cardiac drugs
**MUST ORDER DUID Routine Panel FIRST**
Contact our office to order this test
Premium Cannabinoids Blood/Urine (Quantitative)
Forensic analysis of Premium Marijuana (THC), CBD, CBN, Delta-8, Delta-9, Delta-10
Contact our office to order this test
THC (Qual + Conf) Blood (Quantitative)
Expanded Panel Blood (Quantitative)
Amphetamines, Barbiturates, Benzodiazepines, Buprenorphine, Carisoprodol/ meprobamate, Cocaine, Fentanyl/ norfentanyl, Marijuana (THC), Methadone, Opiates, Oxycodone/ oxymorphone, PCP, Volatiles, Tramadol, Zolpidem, opioids, narcotic analgesic, stimulants, antidepressants, antipsychotics, antihistamines, anxiolytics, anticonvulsants (Gabapentin), antihypertensive, muscle relaxants, antitussives, sedative/hypnotics, dissociative anesthetics, hallucinogens, cardiac drugs and TCA’s
Contact our office to order this test
Abused Specific Drug Screen / Confirmation / Level Blood/Urine
Immunoassay, Liquid Chromatography Mass Spectrometer (LCMS), Gas Chromatography Mass Spectrometry (GCMS) screening for a specific drug from a biological matrix with determination and quantitative concentration of primary drug and metabolite (Quantitative).
Contact our office to order this test
Drug Facilitated Crime Expanded Panel or Date Rape Blood/Urine (Quantitative)*
Amphetamines, Barbiturates, Benzodiazepines, Buprenorphine, Carisoprodol/meprobamate, Cocaine, Fentanyl/norfentanyl, Marijuana (THC), Methadone, Opiates, Oxycodone/oxymorphone, PCP, Volatiles, Tramadol, Zolpidem, opioids, narcotic analgesic, stimulants, antidepressants, antipsychotics, antihistamines, anxiolytics, anticonvulsants (Gabapentin), antihypertensive, muscle relaxants, antitussives, sedative/hypnotics, dissociative anesthetic, hallucinogen, TCA’s and cardiac drugs
Contact our office to order this test
Assuring Safety and Accountability in our Community and Public Safety
1. Specialist in Drug, Alcohol & Substance Trends
Toxicology solutions in today's every changing environment
2. Comprehensive Testing Methods
Industry experts for all your DUI/DUID testing including alcohol & substance
3. Credible Answers
Providing reliable, timely & secure results you can depend on
Exploratory Toxicology
Our forensic testing menu expands and evolves for DUI and DUID cases, toxicology retests, drug-facilitated crime, and substance identification.
- Alcohol DUI/DUID Testing: blood/urine Forensic analysis (California Title 17 Alcohol Lab)
- Illicit Drugs of Abuse DUI/DUID Panel: blood/urine Forensic analysis of common illicit drugs
- Routine DUI/DUID Panel: blood/urine Forensic analysis of common illicit and prescription drugs
- Our forensic testing menu Forensic analysis covering our widest range of illicit and prescription drugs
- Fentanyls and NPS drugs: Forensic analysis of latest emerging drugs of abuse in the fentanyl and novel psychoactive classes of drugs
(DUI Testing Services Including BAC, THC Delta 8, Delta 9, & Delta 10 & Substance)
A trusted laboratory with a strong reputation
ReliaLab's affiliate company is a leading provider of expert toxicology services utilizing thorough analytical test methods for multiple specimen types. Our scientists and qualified support team have extensive experience supporting criminal case investigations.
Accreditations
Our partner Laboratory is nationally certified offering superior analytical methods using state-of-the-art technology with rapid turnaround time. Our partnered lab is accredited by the American Board of Forensic Toxicology (ABFT) and the State of California Title 17 as a blood alcohol laboratory.
