The Prosecutorial Investigation Committee is a group of 11 individuals who are appointed by various political leaders and legal figures to investigate the activities of prosecutors. The P.I.C. has ties to the Bar Association and functions similarly, though the Bar Association regulates defense attorneys instead. The chair of the P.I.C. has tremendous power over the group, to the point that it has trouble functioning if the chair is out of commission. With the appointment of Bansai Ichiyanagi as the chair, the P.I.C. launched a so-called "Prosecutor Purge", aiming to remove and replace problematic prosecutors. The P.I.C. meeting room was originally located in the Prosecutor's Building, but was moved to the 50th floor of the Big Tower when it opened in 2018.