Criminal Defense Laws in Colorado

Criminal Defense Law in Colorado: Overview

Colorado has been at the forefront of criminal justice reform and drug policy innovation. It was the first state along with Washington to legalize recreational marijuana through Amendment 64 in 2012. Colorado abolished the death penalty in 2020. The state has a unique two-tier impaired driving system that distinguishes between DUI (0.08% BAC or higher) and DWAI (Driving While Ability Impaired, 0.05% to 0.079% BAC). Colorado's "Make My Day" law provides strong Castle Doctrine protections within the home, but the state generally follows a duty to retreat in public spaces without a comprehensive Stand Your Ground statute. Colorado undertook a major overhaul of its criminal sentencing framework in 2023-2024, reclassifying drug felonies and misdemeanors and expanding alternatives to incarceration. The state uses a felony classification system from Class 1 (most serious) through Class 6, along with drug felonies classified separately into four levels. Colorado has also been a leader in expanding record sealing opportunities and creating pathways for conviction relief.

Key Statutes & Deadlines

Two-Tier Impaired Driving: DUI vs. DWAI

Colorado distinguishes between two levels of impaired driving. DUI (Driving Under the Influence) applies at a BAC of 0.08% or higher, or when a driver is substantially incapable of safely operating a vehicle due to alcohol or drugs. DWAI (Driving While Ability Impaired) applies at a BAC of 0.05% to 0.079%, or when a person is affected to the slightest degree by alcohol or drugs. Colorado is also notable for having an express consent law that includes marijuana, recognizing "per se" DUI at 5 nanograms or more of THC per milliliter of blood, though this creates a permissive inference of impairment rather than a mandatory presumption. For a first DUI, penalties include 5 days to 1 year in jail, fines of $600 to $1,000, and a 9-month license revocation. Colorado does not have a strict lookback period; all prior convictions count regardless of when they occurred. A fourth or subsequent DUI is a Class 4 felony under Colo. Rev. Stat. § 42-4-1307.

Make My Day Law

Colorado's "Make My Day" law (Colo. Rev. Stat. § 18-1-704.5) provides broad immunity for homeowners who use force, including deadly force, against an intruder who has made an unlawful entry into the dwelling and the occupant has a reasonable belief that the intruder has committed or intends to commit a crime in the dwelling and may use physical force against any occupant. Critically, the law provides both criminal and civil immunity. Unlike many Castle Doctrine statutes, Colorado's law does not require that the occupant be in imminent danger of death or serious bodily injury, only that they reasonably believe the intruder might use physical force, however slight. Outside the home, general self-defense principles apply under Colo. Rev. Stat. § 18-1-704, and while there is no statutory duty to retreat, courts consider the reasonableness of the defendant's actions, which may include whether retreat was feasible.

Drug Felony Reclassification and Sentencing Reform

Colorado has significantly reformed its approach to drug offenses. The state created a separate drug felony classification system (Drug Felony levels 1 through 4) distinct from the general felony classes. Level 4 drug felonies, the least serious, carry 6 to 12 months in jail, while Level 1 drug felonies carry 8 to 32 years in prison. HB 19-1263 reclassified single-use drug possession from a Level 4 drug felony to a misdemeanor for most substances. Further reforms in 2022 and 2023 expanded treatment-based alternatives and created presumptive probation for lower-level drug offenses. Fentanyl possession and distribution have been addressed through separate legislation (HB 22-1326) that created specific felony provisions for fentanyl-related offenses while maintaining a treatment-first approach for simple possession.

Colorado Court System

Colorado's criminal courts include County Courts, which handle misdemeanors, petty offenses, and DUI/DWAI cases, and District Courts, which handle all felony cases. Colorado has 22 judicial districts. Felony cases are initiated by information filed by the district attorney after a preliminary hearing, or by grand jury indictment in rare cases. Appeals from District Court go to the Colorado Court of Appeals, with further review available from the Colorado Supreme Court. Colorado uses 12-person juries for felony cases and 6-person juries for misdemeanor cases. Unanimous verdicts are required for all criminal cases. Colorado also operates specialty courts including drug courts, mental health courts, and veterans courts.

Damages & Penalties

Colorado classifies felonies from Class 1 (first-degree murder, carrying life without parole since the death penalty was abolished) through Class 6 (12 to 18 months in prison, with presumptive probation). Class 2 felonies carry 8 to 24 years. Class 3 felonies carry 4 to 12 years. Class 4 felonies carry 2 to 6 years. Class 5 felonies carry 1 to 3 years. Drug felonies are sentenced under a separate system with four levels. Misdemeanors range from Class 1 (6 to 18 months in jail) to Class 3 (up to 6 months). Extraordinary risk crimes carry enhanced penalties. Colorado abolished the death penalty in 2020 through SB 20-100, making life without parole the maximum sentence. Habitual criminal statutes can enhance sentences to up to four times the normal maximum for repeat offenders.

Recent Legislative Changes

Colorado abolished the death penalty in March 2020. Governor Polis commuted the sentences of the three remaining death row inmates to life without parole. The state has continued to reform drug laws, with HB 22-1326 addressing the fentanyl crisis through a combination of increased penalties for distribution and expanded treatment access. SB 23-288 expanded record sealing eligibility and created automatic sealing for certain dismissed cases and acquittals. Colorado has also implemented reforms to its pretrial detention system, moving away from cash bail toward risk-based assessment tools.

Frequently Asked Questions