I think it depends on local law. It may be less than 48 hours in some places.
But why should they even do that, unless or until something happens to push the complaint beyond "he said, she said"? Something like, an additional witness who had been unreachable during the week?
If the crime was that serious that they would need to show up at his home with a TANK, they should have taken him into custody when he came in and gave a statement.
(sigh)
Okay, one more time. The ALLEGED CRIME was not why the armored vehicles were called in. Whether one thinks that "tanks" were a good idea or not, those vehicles only appeared as a result of him refusing to comply with an arrest warrant and barricading himself in his house.
Hesperia and Fremont both have tiny police departments, and I doubt they've even got a helicopter or a tank between them.