‹ Hopen Corporation
DUI PRO

Blood-alcohol analysis, modeled and documented.

DUI Professional is web-based BAC simulation and retrograde-extrapolation software — model alcohol absorption and elimination over time, test drinking-pattern assumptions, and produce documented, litigation-ready reports.

Start a free evaluation → Visit duipro.com
Web-based · the flagship product of Hopen Corporation · in professional use since 2012

BAC simulation

Model alcohol absorption, distribution, and elimination over time with documented assumptions — Widmark baseline, ASB forensic range, Watson Total Body Water, and delayed absorption.

Retrograde extrapolation

Work a measured BAC back to the time of driving, surface rising-BAC questions, and frame the scenarios an expert needs to review.

Public drink database

Thousands of searchable reference drink profiles — by type, ABV, and serving volume — with downloadable PDFs and simulator-ready values.

Litigation-support reports

Generate clear, presentation-ready report output that documents inputs, model choices, and assumptions for the case file.

Built for professionals who work with alcohol timelines

DUI Professional supports analysis, expert review, training, and documented report preparation across legal, forensic, government, and academic settings.

DUI & criminal-defense attorneys Prosecutors Forensic toxicologists Expert witnesses Forensic laboratories Law-enforcement trainers Legal & CLE educators

How it works

1

Build the timeline

Enter drinks from the public database (or your own), set times, weight, sex, and stomach contents, and choose the absorption/elimination model.

2

Simulate & compare

See the expected BAC curve and range over time, test alternative drinking patterns, and check a measured BAC against the alleged driving time.

3

Report

Save the simulation and export a documented report that lays out every input and assumption for expert review or the case file.

Pricing

Start free, then subscribe from your account. Billing and registration are handled on duipro.com.

Evaluation
Free

Inspect the workflow first

  • Public drink database & education pages
  • Sample-style reports, restricted parameters
  • No payment required
Start evaluation
Standard
$49.99/mo

or $199.99 / year

  • Saved simulations & report generation
  • Widmark, ASB range, Watson TBW, timing model
  • Watermarked Expert-model preview
Subscribe
Expert
$99.99/mo

or $499.99 / year

  • Everything in Standard
  • Michaelis-Menten, Norberg-informed PK, PBPK
  • Model overlays & annotated reports
Subscribe
Enterprise
$2,499/yr min.

one approved domain · up to 50 registrations

  • Everything in Expert
  • Agency, firm, university, or military domains
  • Admin-managed seats & entitlement
See details
Subscriptions require a DUI Professional account, which holds your saved simulations and report workflow. Compare full plan details and feature access at duipro.com/pricing.
DUI Professional is a tool for professional analysis, legal review, forensic-toxicology workflows, training, and documented report preparation. It is not court-approved, not guaranteed admissible, and not a substitute for case-specific expert judgment.