That is called an Ace in the Hole and should never be revealed in the opening play or first round of betting.
And a powerful ace it is.
There are countless situations in which various government personnel are well-known to have committed a variety of crimes for which they are never prosecuted, often because they pretend the actions in questions are not crimes. For example, recently some cops broke into a house which was clearly marked with an address different from the one which appeared on the warrant. The cops have not indicated any basis for believing that the clearly-marked numbers on the house had been tampered with. Could a reasonable person believe that a warrant for 2415 XYZ Street would authorize him to break into 2411 XYZ Street and accost the occupants therein?
If the Constitution is the Supreme Law of the Land, then by definition it must be superior to any rule which would give any government agents any authority to act contrary to it. A cop who forcibly enters 2411 XYZ Street without being able to demonstrate a reasonable basis for believing such entry to be legitimate is, like anyone else who forces entry, a burglar. If such entry is for the purpose of accosting the occupants of a dwelling, such a cop is also a robber.
It may be nice to think that prosecutors could go after government personnel who commit crimes, but even in what should be slam-dunk cases, it seems they very seldom do so.