This thread brings to mind the issue one on this board found himself dealing with a while back, wherein a disgruntled business associate made unfounded accusations prompting LE to pay the man a visit and leave with his weapons in their possession. (leaving a large caliber skylight in his living room, if memory serves). Did this individual commit a crime? Hell no!! Were his rights violated? You damn betcha!! Other examples abound. Someone else mentioned the PO'd wife or girlfriend that makes an allegation of abuse, whether unfounded or not, the accused's weapons are confiscated.
To quote the Owner's Manual for the United States, ".....shall not be infringed". Nothing is said about, "unless we think you MAY commit a crime."
When did they start teaching mind-reading in the police academy? It was obviously sometime after I attended.