Cal. Penal Code § 7015

(a) Except as provided in subdivision (b), the Department of Corrections may contract with the City of Folsom for the construction of a courthouse and related facilities, not to exceed one million nine hundred thousand dollars ($1,900,000) in costs. Under this contract, the Department of Corrections is authorized to make payments to the City of Folsom in consideration for the construction of the courthouse, provided that the sums paid to the city are realized from savings to the department by the location of the courthouse in the immediate proximity of Folsom Prison.
Under this contract, the Department of Corrections is authorized to make annual payments to the City of Folsom in an amount not to exceed the approximate savings realized in each fiscal year. These funds shall come from the operating budget of the department.
In negotiating this contract, the Department of Corrections shall note the extent to which the courthouse will serve the interests of the County of Sacramento independent of matters pertaining to individuals in state custody and shall seek appropriate participation in the funding of the courthouse from the county.
(b) The Department of Corrections may not contract with the City of Folsom for a court facility unless a majority of the members of the Sacramento County Board of Supervisors, the presiding judge of the Sacramento County Municipal Court, and the presiding judge of the Sacramento County Superior Court all agree, in writing, to operate a court facility in the City of Folsom as provided by subdivision (a).