The Texas State Board of Pharmacy, as part of an investigation, refused the complainant's request to view its file, even though the file contained the requestor's own prescription. The district court granted summary judgment to the Board after it sued the attorney general, challenging an adverse letter ruling. Because there is no dispute that the requestor's prescription record is part of the Board's investigative file, it is confidential under Texas Occupations Code §565.055. The district court's summary judgment is affirmed. Austin Court of Appeals, No. 03-11-00481-CV, 11-21-2012.