The video starts mid conversation after the arrest has happened.....  So.whether or not her rights were read, cannot be deduced.  I agree with many of the points you raise, and early beckons caution.  I.would add:  -timing   obstruction of justice - I smell a weisman /Mueller rat legal theory)    Evidence tampering.... rather odd....what active cases is she involved in ?    And the issue is so pressing and the danger exhuding from her person theatens the life of the public, that immediate isolation is required in order to be brought before a judge without bail......