Eusebius, don't listen to "Tired of the Nonsense" re: Roman/Jewish guards at the Tomb.
Since the very beginning everyone understood the guards to be Roman. Many Romans
became Christians who participated in the Crucifixion and afterward. Here is a decent
little
summary to read. It makes a number of valid points, but nowhere near the full monte.
Bottom line, the Sanhedrin wouldn't have asked Pilate for a group of guards to stand watch
if they wanted to guard it themselves. Pilate also had every reason to place his own guards
there to keep the peace which was disrupted. I'm sure he was more than a little curious
about his wife's warning concerning Christ.
Nowhere in Jewish tradition or writings was it maintained
that the guards were Jewish temple guards. They were busy watching the temple itself
where other events occurred.