Conspiracy Charges in Colorado

Conspiracy in Colorado is a criminal offense that can be charged when prosecutors believe two or more people agreed to commit a crime, attempt to commit a crime, or help plan or carry out a crime. These cases often arise from allegations involving drugs, theft, burglary, robbery, assault, fraud, weapons, organized criminal activity, internet communications, gang allegations, financial crimes, or situations where police believe several people were working together toward an unlawful goal.

Colorado’s conspiracy statute is C.R.S. § 18-2-201. Under this law, a person commits conspiracy to commit a crime if, with the intent to promote or facilitate the commission of that crime, the person agrees with another person or persons that one or more of them will engage in conduct constituting a crime or an attempt to commit a crime, or agrees to aid another person in planning or committing the crime or attempted crime. In many cases, the prosecution must also prove that one of the conspirators committed an overt act in furtherance of the conspiracy.

Conspiracy charges can be especially dangerous because the prosecution does not have to prove that the planned crime was completed. A person may be charged based on conversations, text messages, conduct, presence with other people, alleged planning, financial transactions, transportation, supplies, or actions that prosecutors interpret as steps toward a crime. But Colorado law still requires more than suspicion, association, friendship, or presence near criminal activity. The state must prove an agreement, intent to promote or facilitate the crime, and any required overt act beyond a reasonable doubt.

Colorado Conspiracy Defense Attorney

Conspiracy allegations often sound broad and intimidating because prosecutors may use them to connect multiple people, multiple acts, and multiple pieces of circumstantial evidence into one criminal theory. A person can be accused of conspiracy even when they did not personally commit the underlying offense, never possessed the stolen property, never touched the drugs, never entered the building, never used the weapon, or never completed the planned act. This makes conspiracy cases highly fact-specific and often dependent on disputed inferences.

At the Law Office of Matthew A. Martin, P.C., we understand that conspiracy cases often turn on assumptions about relationships, messages, location, timing, and shared intent. Matthew Martin carefully examines the alleged agreement, the communications, the conduct of each accused person, the claimed overt acts, the underlying target offense, law enforcement surveillance, search warrants, informant evidence, co-defendant statements, and whether the prosecution can prove that the client actually joined a criminal plan. We fight to ensure our clients are not convicted based on guilt by association, vague conversations, unreliable witnesses, or speculation.

If you or someone you love has been charged with conspiracy in Colorado, call (303) 725-0017 to schedule your free consultation today.

Overview of Conspiracy Charges in Colorado

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Definition of Conspiracy Under Colorado Law

Conspiracy is governed by C.R.S. § 18-2-201. A person commits conspiracy to commit a crime when, with the intent to promote or facilitate the commission of that crime, the person agrees with another person or persons that they, or one or more of them, will engage in conduct constituting a crime or an attempt to commit a crime. A person may also commit conspiracy by agreeing to aid another person in planning or committing a crime or attempted crime.

This definition matters because conspiracy is an agreement-based offense. The prosecution must prove that the accused person intentionally joined a criminal plan. Merely knowing someone who committed a crime, being present when a crime occurred, communicating with someone involved in a crime, or associating with people later accused of criminal conduct is not enough by itself.

In most Colorado conspiracy cases, the law also requires proof that one of the conspirators committed an overt act in furtherance of the conspiracy. The overt act does not have to be a crime by itself, but it must be an act that helps move the alleged agreement forward. This requirement helps separate criminal conspiracy from idle talk, fantasy, speculation, or unacted-upon discussion.

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Common Situations Leading to Conspiracy Charges

Drug Investigations — Conspiracy charges are common in drug cases. Prosecutors may allege that multiple people agreed to possess, distribute, transport, manufacture, or sell controlled substances. These cases may involve wiretaps, confidential informants, controlled buys, text messages, money transfers, vehicle stops, hotel rooms, storage units, or alleged supply relationships.

Theft or Shoplifting Rings — A person may be charged with conspiracy if prosecutors believe several people planned to steal merchandise, coordinate distractions, use tools, resell stolen items, or share proceeds. The defense may challenge whether there was actually an agreement or whether the accused person was merely present with others.

Burglary or Trespass Allegations — Conspiracy charges may arise when police believe several people planned to enter a home, business, vehicle, storage unit, or construction site unlawfully. Prosecutors may rely on location data, tools, messages, surveillance video, or statements from co-defendants.

Robbery or Assault Cases — In violent-crime cases, conspiracy may be charged when prosecutors believe multiple people planned a robbery, assault, retaliation, intimidation, or confrontation. These cases can carry serious felony exposure, especially if the planned crime involved weapons or injury.

Fraud and Financial Crimes — Conspiracy may be alleged in cases involving identity theft, credit card fraud, insurance fraud, check fraud, business fraud, unemployment benefits, tax allegations, or schemes involving multiple participants. These cases often depend on documents, account records, emails, phone records, and financial transactions.

Weapons Cases — Prosecutors may charge conspiracy when they believe people agreed to unlawfully obtain, possess, use, transfer, or conceal firearms or other weapons. The defense may examine whether the accused person actually agreed to criminal conduct or merely had knowledge of another person’s weapons.

Online Communications and Social Media — Some conspiracy cases are built from text messages, social media chats, direct messages, group chats, or encrypted communications. The prosecution may argue that the messages show planning, while the defense may argue that they show joking, exaggeration, misunderstanding, fantasy, or incomplete context.

Co-Defendant or Informant Accusations — Conspiracy cases often rely on statements from people trying to reduce their own exposure. Co-defendants, informants, or cooperating witnesses may have strong incentives to exaggerate another person’s role. Their credibility must be carefully challenged.

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Agreement and Intent in Colorado Conspiracy Cases

The agreement is the heart of a conspiracy charge. The prosecution must prove that the accused person agreed with at least one other person to commit a crime, attempt a crime, or aid in planning or commission of a crime. The agreement does not have to be formal, written, or spoken in precise words. Prosecutors may try to prove it through circumstantial evidence.

However, circumstantial evidence still must establish a real criminal agreement beyond a reasonable doubt. People may be friends, relatives, roommates, co-workers, romantic partners, passengers, or acquaintances without being co-conspirators. A person may know about another person’s criminal conduct without agreeing to participate in it. A person may be present at a location without sharing another person’s intent.

Intent is equally important. The accused person must have acted with the intent to promote or facilitate the commission of the crime. This means the person must have intentionally joined the criminal objective, not merely acted in a way that later appeared suspicious. The defense often focuses on separating innocent association, passive knowledge, fear, confusion, or unrelated conduct from intentional participation in a criminal agreement.

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The Overt Act Requirement

In many Colorado conspiracy cases, no person may be convicted of conspiracy unless an overt act in pursuance of the conspiracy is alleged and proved to have been done by the accused person or by a person with whom the accused conspired. An overt act is an act that advances, supports, or helps carry out the alleged agreement.

The overt act does not necessarily have to be illegal by itself. It could include buying supplies, driving to a location, sending a message, renting a vehicle, transferring money, obtaining information, scouting a location, arranging a meeting, or taking some other step that prosecutors claim moved the conspiracy forward. But the act must be connected to the alleged criminal agreement.

There are important statutory exceptions. Colorado law does not require an overt act when the object of the conspiracy is a felony against the person or first-degree arson, second-degree arson, or third-degree arson. Even when an overt act is not required, the prosecution must still prove the agreement and the intent to promote or facilitate the target crime.

The defense may challenge whether the alleged overt act actually occurred, whether it was committed by the accused or a true co-conspirator, whether it was connected to the alleged plan, and whether it was equally consistent with innocent conduct.

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Conspiracy vs. Attempt vs. Complicity

Conspiracy is different from attempt and complicity, although prosecutors may charge these theories together. Understanding the difference is important.

Conspiracy focuses on agreement. A person may be charged with conspiracy because prosecutors believe they agreed with someone else to commit a crime or help plan a crime. The target crime does not have to be completed.

Attempt focuses on a substantial step toward committing a crime. A person may be charged with attempt even if no one else was involved, as long as the prosecution believes the person intended to commit the crime and took a substantial step toward it.

Complicity focuses on accountability for another person’s completed crime. A person may be prosecuted as a complicitor if they aided, abetted, advised, or encouraged another person in committing an offense, with the required intent. Unlike conspiracy, complicity generally depends on the commission of the underlying offense.

These distinctions matter because the same facts may not support all theories. A person may have been present without agreeing, may have talked without taking a substantial step, or may have known about a crime without aiding it. A defense attorney must challenge the exact theory the prosecution is using.

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Drug Conspiracy Charges

Drug conspiracy cases can be among the most aggressively prosecuted conspiracy cases in Colorado. Prosecutors may allege that several people agreed to manufacture, distribute, sell, transport, or possess controlled substances with intent to distribute. These cases often involve surveillance, phone extractions, text messages, controlled buys, confidential informants, money transfers, vehicle searches, and statements from cooperating witnesses.

Drug conspiracy allegations can be especially dangerous because prosecutors may try to hold a person responsible for larger amounts of drugs than they personally possessed. They may argue that each participant knew the broader plan and should be accountable for the conduct of the group. The defense may challenge the scope of the alleged agreement, the defendant’s knowledge, the amount of drugs attributable to the defendant, and whether the accused person was merely a buyer, passenger, roommate, or acquaintance.

In drug cases, the prosecution may also rely heavily on coded language, slang, or interpreted messages. The defense must examine whether those interpretations are accurate, whether the messages are taken out of context, and whether the state can prove criminal agreement rather than ordinary communication, personal use, or association.

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Theft, Burglary, Robbery, and Fraud Conspiracy Charges

Conspiracy charges are frequently added to theft, burglary, robbery, and fraud cases. Prosecutors may allege that several people planned to steal property, enter a building, commit a robbery, use stolen financial information, pass fraudulent checks, or coordinate a broader scheme. These cases may involve surveillance video, location data, social media messages, vehicle evidence, financial records, and co-defendant statements.

In theft and burglary cases, the defense may challenge whether the accused person knew about the plan, intended to participate, or simply happened to be present. A driver, passenger, lookout, friend, or person nearby is not automatically a conspirator. The prosecution must prove agreement and intent.

In fraud cases, the defense may challenge whether the accused person understood the transaction was illegal, knew the documents were false, intended to deceive anyone, or agreed to participate in a broader scheme. Financial transactions can be complicated, and not every suspicious payment or communication proves conspiracy.

In robbery or violent-crime cases, the defense may focus on whether the accused person agreed to the use of force, knew a weapon would be used, withdrew from the plan, or was surprised by the conduct of another person. The details of the alleged agreement can determine the level of exposure.

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Penalties for Conspiracy in Colorado

The penalties for conspiracy in Colorado depend on the classification of the crime that was the object of the conspiracy. Under C.R.S. § 18-2-206, conspiracy is generally punished one level lower than the target felony, with special rules for class 1 felonies, misdemeanors, petty offenses, and drug crimes. For most felony conspiracy cases, the prison range, fine range, and mandatory parole period are determined by Colorado’s felony sentencing statute, C.R.S. § 18-1.3-401. Colorado’s conspiracy statute specifically provides that conspiracy to commit a class 1 felony is a class 2 felony; conspiracy to commit a class 2 felony is a class 3 felony; conspiracy to commit a class 3 felony is a class 4 felony; conspiracy to commit a class 4 felony is a class 5 felony; and conspiracy to commit a class 5 or class 6 felony is a class 6 felony.

Conspiracy to Commit a Class 1 Felony — Conspiracy to commit a class 1 felony is a class 2 felony. A class 2 felony generally carries 8 to 24 years in the Colorado Department of Corrections, a fine of $5,000 to $1,000,000, and a mandatory parole period of 3 years if the offense is not a crime of violence. If the offense is classified as a crime of violence, the mandatory parole period is 5 years.

Conspiracy to Commit a Class 2 Felony — Conspiracy to commit a class 2 felony is a class 3 felony. A class 3 felony generally carries 4 to 12 years in prison, a fine of $3,000 to $750,000, and 3 years of mandatory parole.

Conspiracy to Commit a Class 3 Felony — Conspiracy to commit a class 3 felony is a class 4 felony. A class 4 felony generally carries 2 to 6 years in prison, a fine of $2,000 to $500,000, and 3 years of mandatory parole.

Conspiracy to Commit a Class 4 Felony — Conspiracy to commit a class 4 felony is a class 5 felony. A class 5 felony generally carries 1 to 3 years in prison, a fine of $1,000 to $100,000, and 2 years of mandatory parole.

Conspiracy to Commit a Class 5 or Class 6 Felony — Conspiracy to commit a class 5 felony or class 6 felony is a class 6 felony. A class 6 felony generally carries 1 year to 18 months in prison, a fine of $1,000 to $100,000, and 1 year of mandatory parole.

Conspiracy to Commit a Class 1 or Class 2 Misdemeanor — Conspiracy to commit a class 1 misdemeanor or class 2 misdemeanor is a class 2 misdemeanor. For offenses committed on or after March 1, 2022, a class 2 misdemeanor in Colorado carries up to 120 days in county jail, a fine of up to $750, or both.

Conspiracy to Commit a Petty Offense — Conspiracy to commit a petty offense is punished as the same class as the petty offense itself. Because petty-offense penalties can depend on the specific underlying offense, the exact jail exposure, fine, and collateral consequences must be determined by looking at the target petty offense charged in the case.

Drug Conspiracy Penalties — Colorado has separate conspiracy classifications for drug offenses. Except as otherwise provided by law, conspiracy to commit a level 1 drug felony is a level 2 drug felony; conspiracy to commit a level 2 drug felony is a level 3 drug felony; conspiracy to commit a level 3 drug felony is a level 4 drug felony; and conspiracy to commit a level 4 drug felony is a level 4 drug felony. For drug misdemeanors, conspiracy to commit a level 1 drug misdemeanor is a level 2 drug misdemeanor, and conspiracy to commit a level 2 drug misdemeanor is also a level 2 drug misdemeanor. The exact penalty depends on the drug level, substance, quantity, aggravating facts, and whether any special sentencing statute applies.

Aggravated, Mandatory, or Enhanced Sentencing Issues — The ranges above describe the ordinary presumptive penalties. Some conspiracy cases may carry harsher consequences if the target offense involves violence, sex offenses, habitual criminal allegations, extraordinary aggravating circumstances, sentence enhancers, or other special sentencing rules. Colorado law also allows a court, in extraordinary mitigating or aggravating circumstances, to impose a sentence outside the presumptive range, but generally not more than twice the maximum or less than one-half the minimum authorized presumptive term unless another statute controls.

Related Charges Can Increase the Total Exposure — Conspiracy is often charged alongside the alleged target offense, attempt, complicity, theft, burglary, robbery, assault, fraud, drug distribution, weapons charges, or organized-crime allegations. When multiple counts are filed, the total sentencing exposure may be far greater than the conspiracy count standing alone. For that reason, the defense must evaluate the entire charging document, the classification of the target offense, whether counts may merge, and whether sentences could be imposed concurrently or consecutively.

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Collateral Consequences of a Conspiracy Conviction

A conspiracy conviction can create serious collateral consequences. Because conspiracy suggests planning and intentional participation in criminal conduct, employers, landlords, licensing boards, schools, immigration authorities, and background-check companies may view the conviction harshly. A felony conspiracy conviction can affect firearm rights, professional licensing, housing, employment, immigration status, public benefits, security clearances, and future sentencing.

For noncitizens, conspiracy charges require careful analysis. Immigration consequences often depend on the target offense, the sentence, the factual basis, and whether the offense is treated as involving theft, drugs, violence, fraud, or moral turpitude. A conspiracy conviction can sometimes carry consequences similar to the underlying crime for immigration purposes. Anyone with immigration concerns should have the case reviewed before entering a plea.

Conspiracy charges can also affect co-defendant relationships. A person may face pressure to cooperate, testify, provide information, or accept a plea to avoid greater exposure. Those decisions can have long-term consequences and should be made only after careful review of the evidence and legal risks.

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Defenses to Conspiracy Charges

No Agreement — The prosecution must prove an agreement to commit a crime, attempt a crime, or aid in the planning or commission of a crime. If the evidence shows only conversation, presence, association, friendship, or knowledge, the defense may argue that no conspiracy existed.

No Intent to Promote or Facilitate a Crime — Even if the accused person knew about another person’s plan, knowledge alone is not enough. The prosecution must prove that the accused intended to promote or facilitate the crime. Lack of intent is often a central defense.

No Overt Act — In cases where an overt act is required, the prosecution must prove that the accused or a co-conspirator committed an act in furtherance of the conspiracy. If the alleged act did not occur, was not connected to the plan, or was equally consistent with innocent conduct, the charge may be vulnerable.

Mere Presence — Being at the scene of a crime or with people who committed a crime does not automatically make someone a conspirator. The defense may argue that the accused person was present but did not agree to or participate in the criminal plan.

Mere Association — A person is not guilty of conspiracy simply because they are friends, relatives, roommates, passengers, co-workers, or romantic partners with someone accused of a crime. The prosecution must prove intentional agreement and participation.

Withdrawal or Abandonment — If a person withdrew from or abandoned the alleged agreement before the crime was committed, that may become an important defense issue. Evidence of withdrawal may include communications, refusal to participate, leaving the scene, warning others, or other conduct inconsistent with continued participation.

Co-Defendant or Informant Unreliability — Many conspiracy cases rely on people who have incentives to blame others. A defense attorney may challenge cooperating witnesses, informants, and co-defendants based on plea deals, bias, criminal history, inconsistent statements, or motives to shift blame.

Messages Taken Out of Context — Text messages, social media posts, calls, and group chats may be ambiguous. The defense may show that prosecutors misread slang, jokes, sarcasm, exaggeration, fantasy, unrelated conversations, or partial communications.

No Knowledge of the Full Plan — The prosecution may try to connect the accused person to a broader scheme. The defense may argue that the person did not know the full plan, did not agree to the target offense, or was not part of the larger alleged conspiracy.

Illegal Search, Seizure, or Interrogation — Conspiracy cases often involve phone searches, vehicle searches, wiretaps, surveillance, home searches, and custodial interviews. If law enforcement violated constitutional rights, the defense may seek suppression of evidence.

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Role of a Colorado Criminal Defense Attorney

Identifying the Alleged Agreement — A defense attorney begins by determining what exact agreement the prosecution claims existed. Vague accusations that people “worked together” are not enough. The defense must force the state to identify the target crime, the alleged participants, and the evidence of agreement.

Separating the Client from Co-Defendants — Prosecutors often group people together in conspiracy cases. A defense attorney works to separate the client’s conduct from the conduct of others and prevent guilt by association.

Reviewing Communications in Context — Messages, calls, emails, social media posts, and digital evidence can be misleading when presented in fragments. Defense counsel reviews the full context to determine whether the communications actually show conspiracy or something innocent.

Challenging Informants and Cooperating Witnesses — Informants and co-defendants may exaggerate, lie, or shift blame to gain leniency. A defense attorney investigates their motives, plea agreements, prior statements, criminal history, and credibility problems.

Analyzing Search Warrants and Surveillance — Conspiracy cases may involve complex investigations. Defense counsel reviews warrants, affidavits, wiretap orders, phone extractions, GPS data, surveillance reports, and whether police lawfully obtained the evidence.

Challenging the Overt Act — When an overt act is required, the attorney examines whether the alleged act actually furthered the conspiracy. Innocent acts should not be transformed into criminal evidence without proof of the underlying agreement.

Negotiating Reduced Charges Where Appropriate — In some cases, the evidence may be weak enough to pursue dismissal. In others, defense counsel may negotiate a reduction, deferred judgment, non-felony outcome, or resolution that avoids the most serious consequences.

Trial Representation in Conspiracy Cases — If the case proceeds to trial, the defense attorney challenges the prosecution’s narrative, cross-examines witnesses, explains the difference between association and agreement, disputes intent, and emphasizes the state’s burden to prove every element beyond a reasonable doubt.

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Key Elements the Prosecution Must Prove

To convict a person of conspiracy under C.R.S. § 18-2-201, the prosecution must generally prove beyond a reasonable doubt that:

  • the defendant agreed with another person or persons that one or more of them would engage in conduct constituting a crime or an attempt to commit a crime, or agreed to aid another person in planning or committing a crime or attempted crime;
  • the defendant acted with the intent to promote or facilitate the commission of that crime;
  • the target offense was a crime under Colorado law;
  • where required, the defendant or another conspirator committed an overt act in furtherance of the conspiracy; and
  • the conduct occurred in Colorado or otherwise falls within Colorado’s jurisdiction.

In cases involving felony offenses against the person or first-, second-, or third-degree arson, Colorado law does not require proof of an overt act. In other cases, failure to prove an overt act may defeat the conspiracy charge. If the prosecution cannot prove agreement, intent, and any required overt act, the defendant cannot be convicted of conspiracy.

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Frequently Asked Questions

Is conspiracy a separate crime in Colorado?
Yes. Conspiracy is a separate offense under C.R.S. § 18-2-201. A person can be charged with conspiracy even if the target crime was not completed.

Does the prosecution have to prove the crime actually happened?
Not necessarily. Conspiracy focuses on agreement and intent. In many cases, the prosecution must also prove an overt act, but the target crime does not have to be completed.

Can I be charged with conspiracy just for being present?
Presence alone is not enough. The prosecution must prove that you agreed to participate in the criminal plan and intended to promote or facilitate the crime.

Can text messages be used to prove conspiracy?
Yes. Prosecutors often use text messages, social media messages, emails, and phone records. The defense may argue that the messages are ambiguous, taken out of context, or do not prove an actual agreement.

Is conspiracy a felony in Colorado?
It depends on the target offense. Conspiracy to commit a felony is usually a felony. Conspiracy to commit a misdemeanor is usually a misdemeanor.

What is an overt act?
An overt act is a step taken in furtherance of the alleged conspiracy. It does not have to be criminal by itself, but it must be connected to the alleged agreement.

Is an overt act always required?
No. Colorado law does not require an overt act when the object of the conspiracy is a felony against the person or first-, second-, or third-degree arson. In many other conspiracy cases, an overt act must be alleged and proved.

Can I be convicted if the other person was acquitted?
Conspiracy cases can involve complicated rules when co-defendants are acquitted or when the sole evidence of conspiracy is the same evidence used to prove the target offense. These issues require careful legal analysis based on the specific case.

What if I changed my mind before anything happened?
Withdrawal or abandonment may be an important defense issue, especially if you took steps showing you no longer intended to participate. The facts and timing matter.

Can conspiracy be charged with the completed crime?
Yes. Prosecutors may charge conspiracy along with the completed offense, attempt, complicity, or related charges. The defense must challenge each count separately.

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Additional Resources

Colorado Revised Statutes § 18-2-201 – Conspiracy — This is the primary Colorado statute defining conspiracy. It explains the agreement requirement, intent requirement, overt-act requirement, and exceptions for certain offenses.

Colorado Revised Statutes § 18-2-204 – Duration of Conspiracy — This statute addresses when a conspiracy is considered a continuing course of conduct and when abandonment may be presumed.

Colorado Revised Statutes § 18-2-205 – Incapacity, Irresponsibility, or Immunity of Party to Conspiracy — This statute addresses situations where another party to the conspiracy may be legally incapable, irresponsible, or immune from prosecution.

Colorado Revised Statutes § 18-2-206 – Penalties for Criminal Conspiracy — This statute sets the penalty classification for conspiracy based on the classification of the target offense.

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Finding a Colorado Conspiracy Defense Attorney

Conspiracy charges in Colorado can be complicated, broad, and heavily dependent on circumstantial evidence. Prosecutors may try to turn conversations, associations, travel, messages, or ordinary conduct into proof of a criminal agreement. But Colorado law requires more than suspicion or guilt by association. The prosecution must prove an agreement, intent to promote or facilitate a crime, and any required overt act beyond a reasonable doubt.

At the Law Office of Matthew A. Martin, P.C., we defend clients facing conspiracy, attempt, complicity, drug, theft, burglary, fraud, assault, and related criminal charges throughout Colorado. We investigate the alleged agreement, challenge unreliable witnesses, review digital evidence, attack weak inferences, and fight to protect our clients’ freedom, records, and future.

If you are facing conspiracy charges in Colorado, call (303) 725-0017 today to schedule your free consultation.

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