ACADEMY ENGINEERING is unlocked by researching an Academy Engineer, after you have already researched Interrogation Techniques. It's a random unlock from them, like all of the shipping documentation, so if you don't get it at first, keep trying and eventually it will unlock.
I believe the idea is that those ALL CAPS topics are a comprehensive overview of a particular subject, including particularly sensitive information. The people who have that information won't give up their full understanding of it until you know how to thoroughly interrogate them. You'll only get bits and pieces (like shipping documentation) without the proper approach.