E. Homeland Security Measures.

Records of the expenditure of public moneys on security arrangements or investigations, including contracts for security arrangements and records related to the procurement of, budgeting for, or expenditures on security systems, shall be open for inspection, except to the extent that they contain specialized details of security arrangements or investigations. A custodian may deny the right of inspection of only the portions of a record that contain specialized details of security arrangements or investigations and shall allow inspection of the remaining portions of the record.

If an official custodian has custody of a public record provided by another public entity, including the state or a political subdivision, that contains specialized details of security arrangements or investigations, the official custodian shall refer a request to inspect that public record to the official custodian of the public entity that provided the record and shall disclose to the person making the request the names of the public entity and its official custodian to which the request is referred.

Colo. Rev. Stat § 24-72-204-(2)(a)(VIII)