It is not an irregularity
Quit hearing zebras when horses are running
How did the judge determine whether or not an autopsy was necessary to determine or confirm the nature and cause of death?
The body was found in the morning after Scalia did not show up for breakfast. The body was moved to El Paso at 3 AM.
That’s at least 18 hours.
During that time neither of the two JP’s nor the County Judge on whom the duty devolves saw the body.
In all that time the County Judge did not see the body and, without an autopsy to determine the cause of death of the found body, literally phones it in that the cause of death is “natural”.