Abbreviation

　Previously I wrote that prosecutor is called "P" for short. Today I talk about abbreviation of other lawyers. Judge is called "J" for short. Attorney is called "B" for short. P andJ are initials of each job's name in English. But B is an initial of "Bengonin", which is Japanese. If we use English, "A" means attorney. But in fact, "A" means defendant. I dont know why it is so (・_・?)