For a building? 4th Amendment. Cops need a warrant for a premises even if it is known that an individual with a personal warrant is present inside. Not for the curtilage, though.
And the property confiscation in just armed burglary of an occupied residence at that point.
Armed SWAT team for political support of their masters' opposition.
Battering ram for a door with glass paneling.
Folks, they're not sending their best.
The Feds knew these foreigners were about to destroy evidence
And the property confiscation in just armed burglary of an occupied residence at that point.