MOV File Integrity Analysis

I have a single iPhone-recorded MOV that captured a domestic-violence incident. The phone was smashed during the recording, and the video stops at 34 - 40 seconds and the audio stops suddenly at 1 minute 23 seconds. I need a digital- forensics professional to determine whether the file ends naturally or was deliberately truncated or otherwise altered.

What I provide
• The untouched MOV file (original source) Not sure if its original. It was provided as evidence in a court case
• Context of the event and the exact time the phone was damaged. I don’t have this.

What I need from you
• A thorough integrity examination of the container and streams, including metadata, time-stamps, GOP structure, and any mismatch between video, audio, and header information
• Detection of signs of tampering such as re-encoding, splicing, or missing frames/samples
• Clear explanation of why the audio stops—hardware failure, file corruption, or manual edit
• A concise forensic report suitable for legal proceedings, outlining methodology, tools used, findings, and confidence level
• If feasible, an attempt to recover or coax out any additional data beyond the 1:23 mark

You are free to use industry-standard utilities—FFmpeg, ExifTool, Adobe Audition, Amped FIVE, or other specialist forensic suites—as long as your process is fully documented.

No prior analysis has been performed, so you will be working with a clean slate. Accuracy and impartial reporting are essential.