When the Admiral tells Clipton to get a Magistrate issue a warrant and Clipton asks for what the response is just that he'll let him know when to serve the warrant.Getting a warrant requires stating probable cause and some description of what is to be searched for.
The pictures supposedly taken by Major Biggs of Vinnie and Prescott Wilson would be impossible to get from his distance and angle.
Major Biggs is supposedly "tailing" Vinnie on his trip to Utah, but he is already present whenever Vinnie arrives at each point, and already set up to take photographs, yet he didn't know where Vinnie was going.