Every district attorney has the power to authorize and approve the participation of his judicial district in intergovernmental cooperative relationships concerning criminal prosecution and may enter into contracts on behalf of his judicial district for cooperation with other district attorneys concerning such prosecution and prosecution-related services; except that no district attorney shall be authorized or empowered by this section to obligate county funds which have not been appropriated by the affected boards of county commissioners in his judicial district.
C.R.S. § 20-1-110