Here is what actually happened and the prosecution later admitted it. (they first blamed it on the defense android phone)
1. Prosecution receives the file via airdrop, direct data transfer.
2. Prosecution sends the file via gmail to the defense but it gets compressed in the process.
There are 2 ways to send a vid/pic from ios with gmail
1. from gmail app with attachment function, this pops up a window with "processing" (compresses the video, which is poorly worded imo)
2. from ios photos app > share > gmail, this shows a progress bar at the bottom with "compressing"
both ways are easy to overlook, first one is poorly worded and its a very fast process, my test vid with 25mb took <1s and video in question is only 4s/11mb
the real question is, why is there no proper evidence system in place to submit and review(for all 3 parties), using gmail and dropbox sounds very questionable to me.
"How it works: first, an accessibility user signs up at this URL, which is linked in the hCaptcha widget info page. They are given an encrypted cookie that can be used several times per day, but must be refreshed every 24 hours via login."
https://github.com/dotnet/runtime/blob/1ba0394d71a4ea6bee7f6...