http://www.cnn.com/2006/POLITICS/06/16/mckinney.grandjury/index.html WASHINGTON (CNN) -- A grand jury has declined to indict Rep. Cynthia McKinney, D-Georgia, who was accused of punching a Capitol Police officer in April. The grand jury's decision ends the investigation into the incident, according to U.S. Attorney Kenneth Wainstein. The March 29 altercation occurred at a security checkpoint in a congressional office building after officer Paul McKenna, a three-year veteran of the force, failed to recognize the six-term Georgia Democrat and tried to stop her from bypassing a metal detector. Members of Congress are allowed to go around the detectors. However, they are supposed to wear pins that identify them as representatives or senators. McKinney acknowledged she was not wearing her pin.