Colorado constitution
Article XXVIII
Section 9

(c) A subpoena issued by an administrative law judge requiring the production of documents by an issue committee shall be limited to documents pertaining to contributions to, or expenditures from, the committee's separate account established pursuant to section 3(9) of this article to support or oppose a ballot issue or ballot question. A subpoena shall not be limited in this manner where such issue committee fails to form a separate account through which a ballot issue or ballot question is supported or opposed.