House Bill 1394 and Senate Bill 1351 propose amendments to the Tennessee Code Annotated concerning the Tennessee Bureau of Investigation (TBI). The bill introduces a new section in Title 38, Chapter 6, Part 1, which defines "investigative materials" to include various forms of media such as audio and video files, recordings, transcripts, documents, reports, and other relevant materials generated by the bureau during investigations.

Additionally, the bill mandates that the TBI must maintain copies of all original investigative materials alongside the case file for each investigation. This requirement aims to ensure proper documentation and accessibility of investigative materials, thereby enhancing the integrity and transparency of the bureau's operations. The act is set to take effect upon becoming law, emphasizing the importance of public welfare in its implementation.