(2) The authority shall assist county mental health programs in the development of comprehensive and coordinated identification, evaluation, treatment, education and rehabilitation services for the drug-dependent person. The State Plan for Drug Problems shall be consistent with such system. [1977 c.871 §§3,14; 1985 c.740 §16; 2009 c.595 §500; 2009 c.856 §§13,22]