Indiana Code Title 4. State Offices and Administration § 4-6-3-4

(1) A general description of the subject matter being investigated and a statement of the applicable provisions of law.

(2) The date, time, and place at which the person is to appear, answer written interrogatories, or produce documentary material or other tangible items.  The date shall not be less than ten (10) days from the date of service of the demand.  However, the attorney general may demand and obtain immediate access to records and materials if access is necessary for purposes of investigating alleged violations relating to sales or solicited sales of a synthetic drug (as defined in IC 35-31.5-2-321), a synthetic drug lookalike substance (as defined in IC 35-31.5-2-321.5 (before its repeal on July 1, 2019)), a controlled substance analog (as defined in IC 35-48-1.1-8), or a substance represented to be a controlled substance (as described in IC 35-48-4-4.6).

(3) Where the production of documents or other tangible items is required, a description of those documents or items by class with sufficient clarity so that they might be reasonably identified.