Your 'guess' is for shit. There was one picture where the FBI laid out evidence right after the raid. What we're seeing now is criminal. And there is filmed evidence of the shit being moved around, hidden, by Trump's guys.
The 'Gestapo' secured a judicially authorized warrant for their search. The REAL Gestapo didn't waste their time with such legal niceties.
The FBI has had nothing but Republicans as Directors since its inception. It was far more Gestapo under J. Edgar Hoover. And there is no evidence that the rank and file, like in most police organizations, is made up by other than mostly conservatives.