Any person or business conducting a merchant guard or merchant patrol business (security guard business) must obtain a license.
Forms:

Please bring your valid Colorado identification.
Applicant must be 18
For Merchant Guard Company Application,
click here.
Fingerprints will be taken and a criminal background check completed.
The Department of Excise and Licenses will only accept criminal background investigations conducted by the Colorado Bureau of
Investigation.
A color photograph of the uniform to be worn must be provided;
Inspections: Department of Excise and Licenses Detective; Building, Fire, Zoning if business is located in Denver
Fees:
Application fee 1 to 25 guards: $100;
Application fee 25+ guards: $200
License fee: $200
Complete background investigation fee: $16.50