CP11 is a "secret" Cipher Pol organization, formed of people able to use the Rokushiki techniques. It consists of 11 of the highest order of Rokushiki users, every one of them a master of all 7 powers. However, in CP11, they not only learn Rokushiki but also the two main forms of Haki, armor and observation. CP11 out of all the Ciphor Pols formed by the government is considered to be the most powerful and useful of all of them.