JMO
I do think some of what is in the Arrest Warrant is based on what CBR said but I also think some of it is based on the Fitbit data.
Because of the very specific down to the minute ending time of 8:28pm. I dont think CBR would have known that exact time or told LE that right at that minute is when he left. Also the "known by me" part implies the information can also include things LE found out on their own.
"known by me, or told to me"
I don't.
My experience with the Fitbit data has been interesting.
Whether it was not recording anything including heart rate, BP, time active. That is based on personal experience which resulted in my having to wear a heart monitor for a week straight.
It became apparent within a day or so that the data was not accurate, compared to the halter heart monitor.
They wished to play it safe, thus the week of comparison.