Ok....
Someone explain to me why Donald Trump is the Chief Justice Officer of the FBI?
The FBI was created by the Attorney General in 1908. The FBI falls under the justice department.
The president has the power to hire and fire the heads of departments of the government (CIA, EPA, NASA, FBI, etc...) but unless I'm mistaken, he can't just walk around NASA, point to the janitor, and say "You're fired".
And even if he can, this does not mean that the president is the chief scientist of NASA. His power is in the hiring and firing of department heads. I'm fairly certain he can't micromanage, legally.
So, by all that, The president is not the Chief Justice of the FBI. He's just the guy who controls whose in charge.