Vehicular Homicide Defense in Aurora Requires Challenging What Law Enforcement Concluded — Not Just How They Concluded It

The most consequential mistake in vehicular homicide defense is treating the prosecution's accident reconstruction as the factual baseline and working only to dispute how the investigation was conducted. That approach concedes too much. A complete defense challenges whether the investigation correctly identified causation at all — whether your vehicle's actions were actually the proximate cause of the death, or whether road conditions on E-470, Aurora's intersection geometry, mechanical factors, or another driver's conduct were legally intervening causes that break the causal chain the prosecution needs to establish.

Vehicular homicide under Colorado law can be charged under either a reckless driving theory or a DUI theory, and the distinction matters enormously for defense strategy. A recklessness charge requires the prosecution to prove conscious disregard of a substantial risk — a mental state element that can be contested. A DUI-based charge requires proof of impairment, which depends on chemical testing that carries its own procedural vulnerabilities. Dillon Alfrey Law evaluates which theory the prosecution is pursuing from the moment charges are filed, because the defense approach for each is fundamentally different.

Unlike the standard that should govern this work, Aurora vehicular homicide cases often proceed through Arapahoe County or Adams County courts depending on where the incident occurred — and each jurisdiction has its own procedures for managing complex felony cases involving expert witnesses, multi-agency investigations, and extensive discovery. The defense must be operationally prepared for that complexity from the beginning. That means engaging an independent accident reconstruction expert before the prosecution's expert finalizes their report, filing a motion to preserve the involved vehicles before they are released or destroyed, and obtaining the toxicology sample split for independent laboratory analysis before the biological material degrades.

Toxicology reports in vehicular homicide cases are often treated as authoritative, but they are scientific documents produced by a process that must be scrutinized. Was the blood sample drawn within the timeframe required by Colorado's express consent statute? Was the proper anticoagulant-to-preservative ratio maintained in the collection tube? Was the sample analyzed using gas chromatography with headspace methodology, and were the instrument's calibration records current? Each procedural gap creates a challenge that can shift the weight of the BAC evidence — or remove it from consideration entirely.

If you're facing vehicular homicide charges in Aurora, contact an attorney who understands both the science and the procedural standards that govern this evidence — and who will challenge both from the start.

Vehicular homicide is the most serious charge in Colorado's vehicular crime statutes. Choosing representation requires evaluating attorneys against criteria that actually predict defense quality in these cases:

• Does the attorney immediately move to preserve physical evidence — the vehicles, EDR data, road condition records — before the prosecution controls access to all of it?
• Can the attorney articulate specifically how to contest causation, not just procedure — including how Aurora's multi-lane intersection design or E-470 traffic patterns could constitute contributing factors?
• Does the attorney have working relationships with independent accident reconstruction experts and toxicology consultants, or does the defense rely entirely on cross-examining the prosecution's witnesses?
• Is the attorney familiar with the difference between recklessness-based and DUI-based vehicular homicide theories, and can they explain which applies to your case and why the distinction changes the defense approach?
• Will the attorney file pre-trial motions targeting specific evidentiary weaknesses before trial preparation begins, rather than treating suppression issues as secondary to the overall narrative?

These distinctions separate a defense built for this charge from one adapted from a standard DUI case. Contact us to discuss your vehicular homicide case in Aurora and evaluate what a defense built around the specific facts can accomplish.