Go back, on the way shooting from the dogs. Follow the other part of the corridor and go to the shooting range. There will be a yellow box. Take it, inspect the inventory and get the car key. There is a license plate on the key fob. There are other useful items in the dash.
Open the door with the diamond and pick up the film from the table. If you show it and study the photo, you will learn about the cache in the gallery. Go there and get a bag from the designated place. Go to the parking garage, open your inventory, look at the key and press the keyfob button. Open the trunk of the car and get an improvement for the «Matilda» (if you play for Claire, you’ll find a unique weapon here).
Go back to the corridor and open the door next to the shooting range. Climb up and enter the nearest room. In the far room on the chair is an electronic part (fuse). There is also a storage and typewriter.
There is a panel at the end of the corridor — insert a fuse into it and the shutters will rise. So you go back to the police station.
Police station (return)
Here you will need to go up to the third floor of the eastern wing, into the corridor with the gallery, and go to the left end to apply the handle on the mechanism. Go to the new wing. Below there are two rooms — with a club and a heart. Climb up and enter the eastern pantry. Look for a large gear in one of the boxes.
Get out and go to the balcony. Go down the stairs. Leon will fall down. Pull the lever on the corner of the building to extinguish the helicopter. It will not work, because the pipe is destroyed. Go down the stairs. You will see another lever on the left side from room to the boiler door. Turn it to position L. Go inside, save and take the green key with the cross off the wall (to the left of the typewriter).
Go back and extinguish the fire (pull the lever next to the helicopter). Enter the building and find Tiran. It is IMPOSSIBLE to kill this enemy; therefore you will have to constantly run away from him during the next period of time.
Run around him and return to the site. Follow to the third floor of the east wing, again pass by the gallery under the roller shutters, which were opened with the handle, and go down to the observation room. Open it with the club key to pick up the box from the table. Apply the red stone obtained earlier to this box. Inside you will find the S.T.A.R.S. Inspect it in inventory to get a flash drive. This flash drive must be applied to a computer in the office of S.T.A.R.S., which will allow you to pick up a revolver from the arsenal.
Head to the west wing and open the recording room on the first floor. Here you will find the handle for the jack. Go to the library; use the handle on the jack to lower the bookshelves. Slide the three shelves together so that you can walk on top of them. Climb up and go through, open the door and follow the right. Go to the chapel through the nearest door and use the big gear on the mechanism on the right. The stairs will descend. You immediately take the gear. Go to the back of the room and see a different mechanism, but the big gear doesn’t fit here. You can go through the door and find gunpowder and Mr. Raccoon on the window at the end of the corridor.
Go back and climb the stairs. There is a mechanism next to the clock. Take a small gear and set in its place a large one. Go down and install a small gear in the mechanism next to the stairs. The bell will fall, and you can to pick up the orange box after the cut scene. Open it in inventory to get the second part of the device.