Subject to subparagraph (iii) of this paragraph, a buyer shall submit a copy of the records required under § 20–401(c) of this subtitle to the primary law enforcement unit within 48 hours after a transaction in a paper or electronic format acceptable to the primary law enforcement unit. If a serial number cannot be determined at the time of the transaction, a buyer shall submit to the primary law enforcement unit: a preliminary report containing the information required under § 20–401(c) of this subtitle, except the serial number, within 48 hours after the transaction; and a final report containing the information required under § 20–401(c) of this subtitle, including the serial number, within 17 days after the transaction. The provisions of subparagraph (i) of this paragraph may not be construed to require a buyer to incur a substantial financial burden to comply with the requirements of this paragraph. A buyer shall keep the records required under § 20–401(c) of this subtitle for at least 1 year after the date of the transaction. A copy of a record submitted under § 20–401(c) of this subtitle: shall be kept confidential; is not a public record; and is not subject to Title 10, Subtitle 6 of the State Government Article. A buyer shall keep all personal property bought for at least 30 days after the buyer submits the information required under § 20–401(c) of this subtitle to the primary law enforcement unit. On the request of the primary law enforcement unit, a buyer shall provide to the primary law enforcement unit any personal property purchased by an automated purchasing machine at the cost of the buyer. A buyer shall make all personal property purchased by an automated purchasing machine available for inspection by the primary law enforcement unit at any time. A buyer shall remove all items of personal property from an automated purchasing machine in intervals of no less than 10 days. A buyer shall notify the primary law enforcement unit of the date and time the buyer will remove personal property from an automated purchasing machine at least 72 hours before removing the personal property. The primary law enforcement unit may inspect the personal property being removed from an automated purchasing machine at the time of the removal.