Colorado law creates immediate oversight of Aurora ICE detention site

Colorado has enacted a new immigration-detention oversight law that requires the state to conduct unannounced inspections at least once every three months at local, county and private facilities holding people for civil immigration proceedings, including sites run under federal contracts, the enacted bill text says. The law excludes facilities operated directly by the federal government.

The clearest currently covered facility in Colorado is the Aurora contract detention facility that ICE lists in Aurora. GEO Group says its Aurora ICE Processing Center has capacity for 1,532 people.

The law authorizes the Colorado Department of Public Health and Environment to inspect covered facilities for food safety, drinking water quality, confinement conditions and standards of care; require annual facility reports; and impose state standards including around-the-clock on-site access to medical and mental-health professionals, according to the statute. Facilities that refuse inspections or violate state requirements can face civil penalties of up to $50,000 for each refusal or violation, the law says.

The same statute gives the Colorado attorney general authority to bring civil enforcement actions. The measure took effect when Gov. Jared Polis signed it and is funded through a new cash fund supported by facility inspection fees, according to the legislature’s bill page.

Colorado’s fiscal note for the bill said that as of May 2026, only one detention facility in the state was operating and being inspected by CDPHE, though the department expected as many as six more sites could open within a year. That makes Aurora the law’s immediate practical focus.

The measure could also reach the planned Big Horn detention site in Hudson if it begins housing people for civil immigration proceedings. Records obtained by the ACLU of Colorado show ICE contracted with GEO Group for detention services there, and Colorado Newsline reported and CBS Colorado reported that the facility remained dormant.

What is less clear is whether operators will challenge the law in court. In the public record reviewed for this assignment, neither GEO Group nor any Colorado county operator had publicly said they would sue over the inspection mandate or staffing requirements.

Still, the law is written to apply to local, county and private facilities operating “on behalf of or pursuant to a contract with federal immigration authorities,” while excluding facilities run directly by the federal government, the statute says. That sets up a potential conflict over how far Colorado can impose health-and-safety rules on nonfederal operators detaining people under ICE contracts.

The statute also includes a severability clause, meaning one provision could be struck down without automatically voiding the rest of the law. If a contractor refuses access, the law lays out the basic enforcement path: CDPHE can inspect and set requirements, noncompliant facilities can be fined, and the attorney general can go to court to enforce the law and seek civil penalties. CDPHE also must send the attorney general a public annual compliance report beginning Jan. 15, 2027.

Colorado has also expanded public-facing oversight of immigration enforcement outside the detention law. In January, The Denver Post reported that Attorney General Phil Weiser’s office launched a complaint portal for alleged misconduct by federal officers, including ICE agents.

The biggest open questions now are operational: how quickly CDPHE will adopt rules defining the new standards, whether Aurora’s operator complies without litigation, and whether Hudson or any other proposed site opens soon enough to expand the law’s reach beyond the state’s only currently active ICE detention center.