A drug-related DUI accusation can arise from prescription medication, cannabis, or another controlled substance. Unlike an alcohol case, the prosecution does not rely on a single prohibited concentration for most drugs. It will instead use chemical testing, driving observations, and field sobriety exercises to argue that a substance affected your ability to operate a vehicle safely.
A Colorado Springs drug DUI lawyer can identify where that argument is incomplete or unsupported. An experienced DUI defense attorney will examine the stop, the arrest, and the laboratory evidence before advising you about your options.
How Does the State Define Drug Impairment?
Colorado Revised Statutes § 42-4-1301 defines DUI as driving after consuming alcohol, one or more drugs, or a combination of both. The substance must make the driver substantially incapable of exercising clear judgment or maintaining physical control and due care. The same law defines DWAI (driving while ability impaired) under a lower standard: impairment to the slightest degree that makes a person less able to drive than usual.
A drug DUI defense attorney in Colorado Springs must separate the presence of a substance from proof of impairment. A blood result can show that a drug or metabolite was detected, but the defense must also evaluate:
- When the substance was consumed
- The reported dosage
- The driver’s tolerance
- Whether the use was lawful
- Whether officer observations match the scientific evidence
For marijuana, state law permits an inference of impairment when a blood test shows five nanograms or more of delta-9 THC per milliliter. Other evidence can challenge that inference.
How Testing Procedures Can Shape the Defense
Colo. Rev. Stat. § 42-4-1301.1 authorizes chemical testing when an officer has probable cause to believe a driver committed DUI or DWAI. Because suspected drug impairment is typically evaluated through a blood sample, the legality and reliability of that testing process can become central to the defense.
When deciding whether the prosecution can use the result, the court can consider how the officer requested the test, whether a warrant was required, and whether the sample was collected according to proper procedures. Our Colorado Springs drug-impaired driving defense team reviews evidence such as:
- Chain-of-custody records
- Laboratory documentation
- Body-camera footage
- Officer reports
- Blood collection records
- Testing and calibration information
Under these circumstances, we compare each account against the timeline. Delays between driving and blood collection can matter because drug concentrations change. Some detected compounds also do not establish when a substance was consumed or how it affected the driver at the relevant time.
Building a Defense Around the Complete Record
In a Colorado Springs drug DUI case, an attorney must evaluate more than the laboratory tests. The defense can examine whether reasonable suspicion supported the traffic stop and whether probable cause existed for the arrest. Medical conditions or environmental factors can also affect roadside performance. Statements attributed to you must be reviewed in their full context.
Geoff Heim brings more than 30 years of criminal-law experience, including prior work as a prosecutor, to this analysis. Our approach emphasizes consistent preparation and clear communication from the initial review through resolution.
Geoff’s longstanding community involvement includes service as chair of the board of Safe Passage, formerly the Children’s Advocacy Center for the Pikes Peak Region. That commitment reflects the same steady responsibility we bring to client representation.
Contact a Colorado Springs Attorney About a Drug DUI Case
A pending charge can affect your license, record, finances, and future decisions. Early review allows the defense to preserve evidence, evaluate testing issues, and prepare for court and administrative proceedings without relying on assumptions about what a drug result means.
A Colorado Springs drug DUI lawyer at our firm will assess the facts, explain the available strategy, and maintain reliable communication as the case develops. Contact Geoff Heim Law for a free consultation and a focused review of the evidence against you.