of the video footage is recorded being killed, shot by a firearm, or grievously injured, shall be prioritized and, if approved, the requested video footage shall be provided as expeditiously as possible, but in no circumstances later than 5 days following receipt of the request. (4) Use of redaction technology (A) In general Whenever doing so is necessary to protect personal privacy, the right to a fair trial, the identity of a confidential source or crime victim, or the life or physical safety of any person appearing in video footage, redaction technology may be used to obscure the face and other personally identifying characteristics of that person, including the tone of the person's voice, provided the redaction does not interfere with a viewer's ability to fully, completely, and accurately comprehend the events captured on the video footage. (B) Requirements The following requirements shall apply to redactions under subparagraph (A): (i) When redaction is performed on video footage pursuant to this paragraph, an unedited, original version of the video footage shall be retained pursuant to the requirements of subsections (i) and (j). (ii) Except pursuant to the rules for the redaction of video footage set forth in this subsection or where it is otherwise expressly authorized by this Act, no other editing or alteration of video footage, including a reduction of the video footage's resolution, shall be permitted. (m) Prohibited withholding of footage Body camera video footage may not be withheld from the public on the basis that it is an investigatory record or was compiled for law enforcement purposes where any person under investigation or whose conduct is under review is a police officer or other law enforcement employee and the video footage relates to that person's conduct in their official capacity. (n) Admissibility Any video footage retained beyond 6 months solely and exclusively pursuant to subsection (j)(2)(D) shall not be admissible as evidence in any criminal or civil legal or administrative