 Why does Joe call Citizen Temple-Tracy Chief?
A gun is an interesting weapon; it can be hired, of course, and naturally doesn't care who hires it. Something much the same can be said of the gunman, too.... The evening was dark, it was unlikely that the other even saw the circle of steel that was the mouth of the shotgun barrel, now resting on the car's window ledge. And at that moment, the universe caved inward upon Joseph Marie Prantera. A door slid open in the wall in a way that Joe had never seen a door operate before. The other spoke precisely and slowly, the way a highly educated man speaks a language which he reads and writes fluently but has little occasion to practice vocally. Salviati happened to be Joe's mother's maiden name. Joe had been born in Naples and his mother had died in childbirth. It opened on his approach, the door sliding back into the wall in much the same manner as the room's door had opened for Reston-Farrell. Joe Prantera stared at him, said finally, flatly, "What's it all about?" Reston-Farrell, the one Joe had already met, was tall and drawn of face and with a chainsmoker's nervousness. He wondered, all over again, if this was some kind of pressure cooker. The maternal linage was almost universally ignored." Whatever the something else was, a slot opened in the middle of the table and a glass, so clear of texture as to be all but invisible, was elevated.
 Joe wants Temple-Tracy to know Joe regards him as superior.
 Temple-Tracy is the Chief of Police.  Temple-Tracy is the head of the Fire Department.  Temple-Tracy is the head of the Time Travel Bureau.  Joe wants Temple-Tracy to know Joe regards him as superior.