Dear John,
Your ignorance of the law is appalling. And unexcusable in this day and age of the internet.
The FBI handed a copy of the search warrant over to Trump's representative when they entered the building as required by law. After they had gathered up the evidence authorized to be collected by that warrant, they handed a copy of the inventory of what they had taken to Trump's representative as required by law.
Are you accusing the FBI of breaking the law?
Edit: the only party who broke the law in this case was Trump himself when he illegally removed documents from the White House. That is not an opinion or hatred of Trump. It is a fact.