Zoom into the showcase; acquire the 1/3 FINGERPRINT with the FORENSICS KIT (Y).
Go to the Phone Booth.
Zoom into the jacket; acquire the 2/3 FINGERPRINT with the FORENSICS KIT (Z).
Walk down twice.
Zoom into the ground and acquire the 3/3 FINGERPRINT with the FORENSICS KIT (A); put the 3 FINGERPRINTS on the valise (B).
Take the 2/2 TUMBLER (C) and the GOLD BADGE (D).
Enter the Post Office.
Zoom into the window, connect the 2 TUMBLERS to the lock (E), and enter the correct code '2263'. Take the BLACK KEY (F).
Zoom into the safe; connect the TORN PHOTO to its other part (G) and use the X-RAY GOGGLES to get the code (H).
Push the buttons in numerical order 1-5 to open the safe.
Play the mini-game.