In 2006, the Colorado General Assembly enacted Senate Bill 06-090, which:
Prohibited local governments from enacting ordinances or policies that prevent police officers, local officials, or employees from cooperating with federal officials regarding an individual's immigration status.
Required peace officers with probable cause to believe an individual was unlawfully present in the U.S. to report the person to federal Immigration and Customs Enforcement (ICE).
Mandated local governments to inform peace officers of their duty to report and to provide written confirmation and reporting statistics to the General Assembly.
Barred non-compliant local governments from receiving grants administered by the Department of Local Affairs.
This legislation was repealed in 2013. In 2024, House Bill 24-1128 was introduced to reinstate the provisions of Senate Bill 06-090. The bill also proposed repealing current laws that:
Prohibit arrests of individuals present at courthouses or attending court proceedings.
Prevent probation officers from sharing personal information with federal immigration authorities.
Forbid state and local entities from contracting with private entities for immigration detention services.
However, House Bill 24-1128 did not pass.
In 2025, Senate Bill 25-047 was introduced with similar objectives to recreate and reenact the provisions of Senate Bill 06-090. This bill is currently under consideration.
The original implementation of Senate Bill 06-090 in 2006 aimed to enhance cooperation between local law enforcement and federal immigration authorities. A 2009 performance audit evaluated its impact and found that while local agencies substantially complied with the law, its implementation alone was unlikely to prevent incidents similar to a notable 2008 case in Aurora, Colorado.
Summary
In 2006, the general assembly passed Senate Bill 06-090, which:
Prohibited a local government from passing any ordinance or policy that would prohibit a police officer, local official, or local government employee from cooperating with federal officials with regard to the immigration status of a person within the state;
Required a peace officer who has probable cause to believe that a person is not legally present in the United States to report the person to the federal immigration and customs enforcement office;
Required each local government to provide notice to peace officers of the duty to report and to provide written confirmation of the notice and reporting statistics to the general assembly; and
Prohibited a local government that violates this provision from receiving any grants administered by the department of local affairs.
Senate Bill 06-090 was repealed in 2013. The bill recreates and reenacts Senate Bill 06-090.
Current law prohibits:
A person from being arrested while the person is present at a courthouse, or while going to, attending, or coming from a court proceeding, and provides remedies for a violation;
A probation officer or probation department employee from providing personal information about an individual to federal immigration authorities; and
State and local governmental entities from contracting with a private entity for immigration detention services or entering into agreements for immigration detention services.
The bill repeals each of these laws.