Here is a very good article, one which speaks for itself by leading US law scholar, Alan Dershowitz, about the invasion of the FBI into Trump’s lawyer’s office, searching for dirt on the latest Trump scandal. The learned professor, tells us here about the constitutional consequences of the raid, and the relationship between the Fourth, Fifth and Sixth Amendments. To briefly explain: the Fourth Amendment protects against unreasonable searches and seizures; the Fifth Amendment protects individual’s against being witnesses against themselves, and the Sixth Amendment deals with rights in criminal trials, such as the need for a speedy trial.
https://www.gatestoneinstitute.org/12154/donald-trump-michael-cohen
“The Fifth Amendment is an exclusionary rule. By its terms, it prevents material obtained in violation of the privilege of self-incrimination from being used to incriminate a defendant – that is to convict him of a crime. But the Fourth and Sixth Amendments provide far broader protections: they prohibit government officials from in any way intruding on the privacy of lawyer/client confidential rights of citizens. In other words, if the government improperly seizes private or privileged material, the violation has already occurred, even if the government never uses the material from the person from whom it was seized. Not surprisingly, therefore, firewalls and taint teams were developed in the context of the Fifth Amendment, not the Fourth or Sixth Amendments.