Here is my 100% Achievement guide and full walkthrough for Tell Me Why (Chapter 2).
When you are in the police station, you need to distract officers downstairs to be able to get upstairs.
Once there, look on Eddie's computer to see something called the Archive room.
From Eddie's office, turn right (where Alyson goes) and the code for the door here is 6041.
Once inside, we will find a box labelled 05-R68. (This is located in the first aisle where the computer is).
Once you've read the info in here, go to the computer and check the two tags. Press
to go across and then press
to get more info.
Once off the computer, go and find the box labelled 05-R61 (This is on the exact same shelf you found your previous box R68).
Once you've checked in here, go back to the computer and more tags will appear..
Make sure to choose Ronan Children & Recording!
Once chosen, press
to interact with it, listen with great interest, but the achievement unlocks here!
Go to 1:00:40 to see the start and where to get this
Hope this helps!