All personnel files, letter scraps, and research documents in the Consequence:
Chapter 3
Letter Scrap 1 - As soon as you gain control of Kidman, open the door. The world will change to something a little more familiar; turn around and go back into the room. Shine your flashlight on the wall to your right to find the combination to the safe on the desk with the letter scrap inside.
Research Entry #154 - Go back to the main hallway and turn right. Interact with the second door on the left and after a short scene, it will open. You can find this document on the stool directly in front of you.
Research Entry #120 - Later on, you'll enter a room with a cart in front of you. Move the cart and open the door to the next room. This document is waiting on the desk at the far side. (I believe this one is mandatory to progress)
Letter Scrap 2 - After a while, you'll get a new flashlight (thank god). Open up the hallway and proceed through the door. The safe is on the desk to your left. Your goal here is to match up the bloodstains on the dials to the blood in the middle.
Research Entry #209 - On the floor below, you'll find the solution to the door puzzle on the whiteboard and the wall behind it. Open the door and this document will be on a cart directly in your path.
Letter Scrap 3 - After leaving the police chief's office (where Kidman sees Sebastian and Joseph talking about Lily), immediately turn right and go in the first door on your left. Looking through the window into the interrogation room, you'll see the combination with arrows indicating the direction to turn the dial on the safe, which is on the shelf behind you.
Personnel: Recording #31 - When you enter the office for the third time, you'll find this on a small table on the right side of the room.
Research Entry #133 - Continue along the path after learning to shove enemies off ledges. After you turn a corner, this will be right in your path.
Personnel: Recording #26 - Pass through the rubble into a reception area of an office building. This is pinned to the wall directly to the left of the path you need to take.
Letter Scrap 4 - In the next room you'll pass a vending machine. Turn left from the vending machine and you'll see this safe. Your goal is to light up all the buttons in a limited number of moves. If the buttons are ordered from 1-16 with 1 being the top left and 16 being the bottom right, the order is 3, 9, 16, 6, 1.
Chapter 4
Research Entry #31 - After following the path past the fallen elevator, this will be on a table in the small room.
Letter Scrap 5 - Ruvik will attempt to take control of Leslie in the dining room. As you progress through the next hallway, there will be a short hall to the side with a painted wall. Shine your flashlight to create a door. Inside this room, you can find one number directly in front of you as you enter, the second to your left, and the third in the back right. The safe is on a table in the back left corner.
Research Entry #232 - Eventually you'll come to a split path. There's a soundtrack to the right if you want it, but nothing important. Go left and then follow the cat down the side hall to the first save point of the chapter. This document is on a table next to the couch.
Letter Scrap 6 - After rescuing Leslie in the kitchen, open the dumbwaiter to the left. Same idea as the fourth safe. This time the order is 2, 5, 13, 11, 16, 4.
Research Entry #188 - Inside Beacon, you'll take a short ride on a lift to the upper level. Proceed past the flashback and through the doorway and this will be on a cart in front of you.
Letter Scrap 7 - After using your flashlight to warp the scenery (you'll end up where Sebastian started the game with Clair de Lune playing), to the left of the corpse table there are some boxes you can break. Behind the last box is the solution to this safe, which can be found behind the curtain. The lights you want to turn on are 4, 5, 6, 7, 12, 16.
Personnel: Recording #4 - After encountering the Mobius boss, use your flashlight to open a path through the gate. You'll find this next to the save point.
Letter Scrap 8 - When you get outside, immediately turn right and you'll find the safe in the corner. This is another where you have to make the bloodstains match up.
Research Entry #264 - Enter the building and you'll find this on the desk in the first room to your right.