And, if it did happen, it is possible neither dispatcher would notice it "right away", but immensely unlikely it wouldn't be noticed as the timestamps drifted further and further apart, until there was a five minute difference [ a difference Bowles never even hinted at].
The five minute difference would have been between what Bowles described as "police time" and "real time". The dispatcher would not be aware of any difference, because they had no way of knowing if and by how much their own clocks (which they related to the master clock in the room) would be behind or faster than "real time".
If there was a difference between "real time" and the master clock of two minutes and a difference of two minutes between the master clock and the clocks used by the dispatchers, you already have a difference of four minutes between "real time" and the dispatcher's clocks.
It doesn't have to be proven conclusively what the exact time difference, to the precise second, was between the dispatcher's clocks and/or time stamps and "real time". The mere possibility that Bowles basically told us that the system wasn't set up to give "real time" is enough to conclude that the time stamps called out but dispatcher can not be relied upon as being accurate.
The evidence I have provided and the arguments I have presented as a result of this evidence, have shown, to a very high degree of probability, that the timestamps in the dispatchers office are synchronised with events happening in Dealey Plaza, specifically the time given on the Hertz clock (corroborated by the testimonies of Powers and Greer).
As such, there is no need to refer to the master clock or "real" time (whatever that means).
"If there was a difference between "real time" and the master clock of two minutes and a difference of two minutes between the master clock and the clocks used by the dispatchers, you already have a difference of four minutes between "real time" and the dispatcher's clocks."
Because I have focused on synchronising the dispatchers timestamps with "Dealey" time the above argument is no longer relevant. The only way for a five minute discrepancy to occur is for the dispatcher's clock for channel 1 to drift 5 minutes away from the moment of 12:30pm, synchronised with "Dealey" time.
For the Tippit shooting to have occurred around 1;10pm that would require a 5 drift shift in 40 minutes (from 12:30pm to 1:10pm)
The Brewer evidence demonstrates channel 2 was still in synch with "Dealey" time around 12:39pm.
The problem I am having is that, from the testimonies of Henslee and Cason, we have a situation where Murray and Henslee are sat at the same radio board that day and, more importantly, Henslee is not only the channel 2 dispatcher, he is also supervising channel 1, meaning he is across both channels.
I find it most unlikely, given this situation, that the channel 1 dispatcher is calling out timestamps that are 5 minutes different from channel 2, and Henslee isn't noticing it.
This drift would've occurred over a period of time, getting gradually worse, so there would be plenty of time and opportunities for the discrepancy to be noticed, particularly as there are so many examples of the dispatchers calling out the same timestamp.
The only other alternative I can see is that
both clocks gradually drifted away from "Dealey" time until there was a 5 minute discrepancy, but I find this scenario extremely unlikely.