This seems to be the best legal answer with regards to McKinney:
McKinney Trial Moved to The Hague
EWM- (April 5, 2006) Succumbing to the reality that the U.S. legal system is not up to the task of handling the “trial of the century,” officials announced today that the cop-beating trial of Rep. Cynthia McKinney will be reclassified as a war crime and moved to The Hague.
McKinney is accused of striking a Capitol Hill police officer who accosted her for bypassing a security checkpoint in the Longworth House Office Building. McKinney, a black woman, says it was a case of “racial profiling.” The burley cop, who was not injured, says his “feelings were hurt.” A tourist who witnessed the incident says, “Christ on a cross, can these morons just get over it?”
Judicial officials say the sheer enormity of the incident justifies the tribunal being moved to The Hague, the principal judicial organ of the United Nations, because of its global implications.
The incident began when McKinney walked around a metal detector used for visitors that are not part of the “royal class,” otherwise known as Members of Congress. When the officer failed to recognize her as a Congresswoman and grabbed her arm, she allegedly stabbed at him with her cell phone.