revise a provision related to unauthorized possession of a controlled drug or substance.

HB 1115 revises South Dakota's law on unauthorized possession of controlled drugs by changing where such charges are filed. The bill amends Section 22-42-5 to state that unauthorized possession charges must now be prosecuted under § 22-42-5.1 instead of the current section. This directly affects individuals found in possession of controlled substances without a valid prescription or authorization. The bill maintains existing felony classifications: possession of Schedule I/II drugs remains a Class 5 felony, while Schedule III/IV possession remains a Class 6 felony. The change primarily modifies the legal citation for prosecution without altering the penalties or scope of the offense.