National Police Agency
noun
けいさつちょう
警察署 （けいさつしょ） Police Station
警察庁 （けいさつちょう） National Police Agency
警視庁 （けいしちょう） Metropolitan Police Department, Metro Police Department
The National Police Agency 警察庁 is the warn 警 and guess 察 agency 庁. They just sit around in offices and guess 察 about bigger and more abstract crimes at the national level.