Log on to http://infamouspapertrail.com/ again, and access the profile window. Examine the evidence that you have gathered in the seventh mission, i.e. the Crime Scene Photos, the Origami Dove #6 and the Winegard Campaign Poster #1. Take the most careful look at the origami dove, because you will receive a number, after you unfold it (the last screenshot).
You need to log on to the DUP Intranet, whether by clicking on the main site of the profile, or by entering the http://departmentofunifiedprotection.com/intranet in a separate browser window. After you have logged in, enter the number that has been provided on the origami dove 6 that you have examined, i.e. 43300691701. wait for the view from holding cell 404 to load.
Start your examination of cell 404. To navigate, use the side buttons and, additionally, click here on the interactive buttons on the screens. You need, this way, examine two more origami doves (their icons will appear in the upper-right corner of the screen - from now on, you can select them freely) and the four remaining interactive areas.
Now, you will have to solve the most difficult part of the puzzle, because you need to read two more numbers, thanks to the drawings that appear on the doves. Start with Origami 1. Stop on the holding cell view, shown in the above screenshot, and display, additionally, the scheme on the origami dove. The plan is that you read the values on the drawings, which have been drawn on the cell's windows. In this case, you will get 38771269341.
Do the same in the case of Origami 2. Stop on the screen shown in the above screenshot. Just like earlier, you need to get the values, basing on the scheme of the dove. Thanks to this, you will get 04465861055.
Return to the browser of the DUP Intranet and enter the first one of the numbers that you have obtained- 38771269341. Thanks to this, you will see the report that concerns the incident. See the last page of the document. Take down the number of the person that appears in the report (00731718404), and a new investigation number (46298893710).
Enter 00731718404 in the DUP Intranet browser, thanks to which you will access the file of the guide. After you learn the file, enter report number- 46298893710. See the last page and take down the number of the camera, which appears in the place shown in the above screenshot. Note - the number is generated randomly, by the game!
Return to your profile now, at http://infamouspapertrail.com/ and select Delsin's Phone that you have been ignoring so far. Into the phone, you need to enter the camera number that you reach in the most recent document. Send the number and wait for the response. After you receive the confirmation of the completion of the mission, start the game again and head towards the starting point for the eighth optional mission.