No drug addict may be admitted to a hospital for voluntary treatment for a period in excess of six months. If he or she is admitted by order of the Criminal Division of the Superior Court, the order shall specifically provide for a maximum of six months in the hospital. (Added 1967, No. 305 (Adj. Sess.), § 1, eff. Oct. 1, 1968; amended 1973, No. 52, § 1; 1977, No. 145 (Adj. Sess.), § 3; 1977, No. 208 (Adj. Sess.), § 6; 2009, No. 154 (Adj. Sess.), § 238.)