You people probably already realized it, but Ginoza is the real Division One veteran by the time of the movie. Like, he has been in Division One even before pops and Kougami (who were in Division Three at the time of Kanshikan Kougami Shinya), and Yayoi was recruited by him (ok, mostly by Kougami, but Ginoza was there, alright?). He is probably the one who worked in that Division the longest (at least of the characters we know about), the baby

6

when something impossible happens, there are only two possibilities.
either your assumptions are wrong,
or you have gone crazy.