For case review
Model consumption timelines, absorption delays, elimination ranges, and retrograde extrapolation questions before deciding what needs expert review.
Professional BAC Analysis Software
DUI Professional BAC Simulation Software
3,041 drink profiles | 30,771 simulations performed | BAC simulation, retrograde extrapolation, and litigation-support reports
DUI Professional | Litigation-Support Blood Alcohol Analysis
DUI Professional is a web-based alcohol analysis platform for professional BAC simulation, retrograde extrapolation review, and drinking-pattern analysis. It helps attorneys, prosecutors, forensic toxicologists, expert witnesses, law enforcement trainers, and legal education users visualize alcohol absorption and elimination over time with documented assumptions.
What is DUI Professional?
DUI Professional is BAC simulation software for modeling alcohol consumption timelines, expected BAC ranges, retrograde extrapolation scenarios, and professional reports.
How can DUI attorneys use BAC simulation?
DUI attorneys can compare a measured BAC with the alleged driving time, test drinking-pattern assumptions, identify rising-BAC questions, and prepare focused expert-review issues.
Who uses DUI Professional?
Users include DUI and criminal-defense attorneys, prosecutors, forensic toxicologists, expert witnesses, law enforcement trainers, forensic laboratories, and CLE instructors.
Public Drink Database
Search reference drink profiles before you build a BAC simulation.
DUI Professional includes a searchable drink database organized by type, subtype, ABV, and reference serving volume. Open individual drink profiles for BAC workflow context, downloadable reference PDFs, and simulator-ready values.
3,041
total drink profiles
1,092
public active profiles
PDF
profile previews and exports
Subscriber Workflow
Move from alcohol timeline questions to documented BAC analysis.
DUI Professional is built for recurring professional use: reviewing client drinking histories, testing alternative drink timing, comparing measured BAC values with alleged driving times, and preparing report output that preserves the assumptions used in the analysis. Subscription access is designed for attorneys, prosecutors, forensic toxicologists, expert witnesses, laboratories, trainers, and CLE presenters who need more than a one-off calculator.
For reporting
Save simulations, revisit assumptions, and generate PDF outputs that document drink profiles, subject variables, BAC ranges, and key timeline points.
For training
Use repeatable scenarios to explain alcohol dose, rising BAC, drink-size assumptions, and timing issues to attorneys, investigators, students, and trainees.
Recent simulator updates
Model comparisons, assumption tracking, and report annotations.
The current simulator supports optional BAC model comparison, per-drink timing controls, and richer report metadata while preserving the standard Widmark workflow as the default.
Model comparison
Multi-model BAC calculations
Compare Standard Widmark with ASB range, Watson total body water, delayed absorption, and advanced research scenarios when the facts justify it.
Charting
Overlay selected models
Show optional model curves beside the default BAC range so peak timing, keypoint values, and assumption-sensitive differences are easier to review.
Granular timing
Per-drink distribution control
Model front-loaded, back-loaded, stacked, or overlapping drinking patterns with per-drink start times, consumption lengths, zoom, and auto-distribution.
Reports
BAC Model Annotation Appendix
PDF reports can list applied models, assumptions, warnings, keypoint values, and source materials without presenting modeled BAC as a measured result.
Assumptions
Subject and evidence inputs
Capture age, height, sex/body-water basis, calculated BMI, optional body-fat TBW override, and post-absorptive evidence for clearer model disclosures.
DUI Professional Subscriptions
Choose the access level that matches the modeling work.
Standard covers the core BAC simulation workflow, including ASB range modeling, Watson Total Body Water, delayed absorption, timing controls, and report output. Expert adds research-oriented pharmacokinetic comparison models. Enterprise extends Expert access to approved organizational domains.
Expert preview policy
Watermarked demos
Standard subscribers can preview Expert research models with an EXPERT DEMO watermark before upgrading.
Evaluation Account
Inspect the workflow before subscribing.
Free
limited access
No payment required- View public drink database and education pages
- Generate sample-style reports with restricted parameters
- Review simulator workflow before choosing a paid plan
DUI Pro Standard
Core professional BAC simulation access.
$199.99
per year
Includes TBW and timing tools- Saved BAC simulations and report generation
- Widmark baseline, ASB forensic range, Watson Total Body Water, delayed absorption, and timing model workflow
- Watermarked Expert research-model preview before upgrade
DUI Pro Expert Monthly
Monthly advanced model access for expert review and technical case analysis.
$99.99
per month
Required for advanced BAC models- Everything in Standard
- Full Michaelis-Menten, Norberg-informed PK, and PBPK approximation model access
- Month-to-month access to model overlays and annotated reports
DUI Pro Expert Annual
Annual advanced model access for expert review and technical case analysis.
$499.99
per year
Required for advanced BAC models- Everything in Standard
- Full Michaelis-Menten, Norberg-informed PK, and PBPK approximation model access
- Best value for recurring model comparison and annotation appendix use
DUI Pro Enterprise Annual License
Agency, firm, university, military, or organizational access for one approved email domain.
$2,499
per year minimum
Up to 50 registrations- Everything in Expert
- Up to 50 users under one non-public email domain
- Domain examples include agency, military, firm, education, or organization domains
- Admin-managed domain entitlement and seat limit controls
Feature Access
Which plan unlocks which BAC tools?
Model cards remain visible in the simulator so users understand what exists. Expert research models can be previewed by Standard subscribers, but output is watermarked until the account has Expert or Enterprise access.
Core Widmark simulation
Preserved default simulator behavior, charting, and report output.
ASB forensic range and delayed absorption
Range-based forensic assumptions, post-absorptive cautions, and scenario analysis.
Timing Model and drag-and-drop drink distribution
Per-drink timing, consumption windows, and net consumption review.
Watson Total Body Water
Anthropometric body-water modeling with required subject inputs and uncertainty disclosures.
Michaelis-Menten, Norberg-informed PK, PBPK approximation
Advanced research-oriented comparison models requiring explicit expert-review framing.
Enterprise domain registration
Up to 50 registrations under one approved non-public email domain.
Subscriber Questions
What subscribers get after registration
Do I need to register before subscribing?
Yes. Registration creates the DUI Professional account that holds saved simulations, subscription status, and report workflow access. After registration, subscription selection happens from the account area.
Which plan is needed for Total Body Water and research models?
Watson Total Body Water is included with Standard. DUI Pro Expert is required for full Michaelis-Menten, Norberg-informed PK, and PBPK approximation output.
How does Expert model preview work?
Standard subscribers can select Expert research models for evaluation, but the output is marked EXPERT DEMO until Expert or Enterprise access is active. Unsubscribed demo mode also locks weight, absorption delay, and elimination-rate controls.
How does Enterprise domain access work?
Enterprise access is configured for one approved non-public email domain and up to 50 registrations. Public webmail domains are not used for enterprise entitlement.
Choose the BAC simulation plan that fits your workflow
Start with registration, then subscribe from your account when you are ready for saved simulations, full parameters, model comparison, and professional report output.
Granular Simulator Controls
DUI Professional now supports more detailed BAC simulation review without changing the default Widmark workflow. Users can enable per-drink distribution timing, compare optional BAC models, preserve subject and evidence assumptions, and generate report appendices that show the model basis used in the calculation.
Per-drink timing
Each drink can have its own modeled start time and consumption length, allowing front-loaded, back-loaded, stacked, or overlapping drinking patterns.
Model comparison
Optional ASB range, Watson total body water, delayed absorption, and research models can be compared against the standard Widmark output when selected.
Transparent reports
PDF reports can include drink timing visuals, model annotations, assumptions, warnings, literature basis, and input audits for professional review.
DUI Pro Applications
DUI Professional supports alcohol-timeline analysis across several professional settings. Law enforcement trainers can use it for report-writing and timeline education. Alcohol education programs can use it to explain standard drinks, absorption, and elimination. Workplace and aviation users can build conservative training scenarios. Civil litigators and DUI attorneys can organize alcohol-related assumptions for expert review.
Evaluate DUI Professional for your BAC workflow
Register for an evaluation account, review subscription options, and test the simulation workflow with attorney, expert witness, or training scenarios.
Licensees of DUI Pro
DUI Professional has supported alcohol education, safety training, legal analysis, and forensic review across legal, academic, government, and professional settings. The organizations shown below are listed as DUI Pro licensees or historical users in the product materials.
