You’ll use totally different keys to get locations this information will study all these keys’ areas.
The Spade Crucial is the key you’ll be amassing and will be positioned in an space on the third Floor of this Police Station close to the West Storage Room’s facet.
Now head to the Balcony by way of the East Storage Room and go down the ladder to the left which you’ll subsequently fall down from. Go down some extra to the world in your Left and also you’ll discover the Boiler Room in entrance of you and the Pump Controls to your proper. Interact with the management, kill the Zombies and go contained in the Boiler Room. There’s a smaller room simply connected, inside which you’ll discover the Diamond Key connected to the whiteboard.