Maybe. But there's nothing in this document to say they did.

Is this not the FBI's own report? Why would they admit to something of questionable legality? That's like trusting the internal investigation from a police department.

An internal investigation from a police department should be conducted by a department which is not directly related to the people (police officers) who are being investigated. The reason for this, is to avoid conflict of interest. If such doesn't happen in your country, that makes your country less free than it IMO should be, but don't assume its like this everywhere in the world.

OP seems to be implying that this disclosure is incriminating of some kind overly aggressive search tactic. I'm saying it doesn't seem to imply that at all. This isn't proof of their innocence, it just isn't proof of their guilt. They _might_ be guilty of something, but there's currently no reason to think that.