No proceeding, opinion, or expression of the Public Counsel shall be reviewable in any court. Neither the Public Counsel nor any member of the Public Counsel's staff shall be required to testify or produce evidence in any judicial or administrative proceeding concerning matters within the Public Counsel's official cognizance, except in a proceeding brought to enforce sections 81-8,240 to 81-8,254.
Neb. Rev. Stat. §§ 81-8,253