Law enforcement - Medical Marijuana Registry

For questions related to marijuana enforcement and MED regulations (such as METRC, point of sale, licensed center requirements, plant count and grow regulations), please contact the Colorado Department of Revenue’s Marijuana Enforcement Division.
Marijuana training for law enforcement
Contact Colorado Peace Officer Standards Training (POST) for information about current marijuana-related curriculum and courses, printable handouts, the POST Training Calendar, and Legal Updates.
What information can the Medical Marijuana Registry verify with law enforcement?
In specific circumstances, the Medical Marijuana Registry can verify limited information with law enforcement.
Pursuant to Colorado Constitution Article XVIII Section 14: 
  • The Registry can only verify whether or not a patient is lawfully in possession of a registry identification card. The Registry cannot verify plant counts or physician certifications. 
  • Law enforcement must have come in contact with an individual or be presented with a registry identification card before they can request that the Registry verify information. 
  • Information can only be shared with authorized employees of state or local law enforcement. 
Verify patient card status
The Query Medical Marijuana Patient (QMMP) function in the Colorado Crime Information Center (CCIC) is currently unavailable. We are working to resolve this as quickly as possible. In the meantime, please follow the instructions below to verify patient card status by contacting the Registry. 
  • Email with the subject line “Law Enforcement Patient Status Verification.” 
  • Attach a letter on your agency’s letterhead which includes your name, title, agency, badge information, a description of how you came into contact with the individual, and the individual’s name, date of birth, and registry identification card number. 
  • Attach all documentation presented by the person, such as a copy of the registration card.
Use the link above to search by registry identification card number to check if it has been voided, denied, or revoked. Information changes daily. 
  • Check denied mailed applications here 
    If a first-time applicant applied by mail and is using temporary paperwork purchase medical marijuana, please use this list to check if a mailed application has been denied.   

Notice of conviction
State or local law enforcement shall immediately notify the Medical Marijuana Registry when a person in possession of a medical marijuana card has been convicted of violating the Colorado Constitution or statutes, or has plead guilty to such offense. Notices must come in the form of:

  • A notice of conviction, court finding or final disposition related to a court conviction. 
  • A law enforcement summons or citation with a signed admission of guilt in lieu of a court appearance.
To send a Notice of Conviction to the Registry save the court finding or final disposition to your device, complete this form, attach the document and click "submit." You may also email these documents to using the subject line “Notice of Conviction.”