California Code, Code of Civil Procedure - CCP § 1574

(a) The courts of the other state cannot obtain jurisdiction over the holder;

(b) The other state has agreed to bring actions in the name of this state at the request of the Attorney General of this state to enforce the provisions of this chapter against any person in the other state believed by the State Controller to hold property subject to escheat under this chapter, where the courts of this state cannot obtain jurisdiction over such person; and

(c) The other state has agreed to pay reasonable costs incurred by the Attorney General in bringing the action.