I believe in a strong purpose which encapsulates as much of the topic as possible.
For example I wanted to learn Java programming.I could have asked many many questions about all sorts of details.I decided to declare my purpose as:
"My purpose for photoreading this book is so that I can design java programs and make a java based website"
Now whilst that purpose does not specifically include asking many detailed specific quesitons, the fact is that the details are kept at mere details, but they are included in answering my overall purpose, ie:
- I have to know what "classes" are in order to work with java.
- I have to understand what "objects" are in order to design java programs.
- I have to understand security issues in order to build a java website.
You see that I didn't ask those things from the start.Like Alex says, the questions just naturally arise as you start to do it.But if you start out with specific questions then it is all too easy to lose track of why you're actually doing what you're doing.
To me starting out with all of those questions goes against the essence of what photoreading is about.It seems more like laborious traditional reading to me.
A technique I use as well is "virtual reality." In my mind I imagine myself doing what I am learning about.For you it may be standing in a courtroom.Really know that you know what you're doing and that you have all the knowledge you need in order to complete the job.Basically I just 'become' the person I wish to be, simple as that.I constantly think that I am already an expert and then the details just fit in.Besides we already know how to do most things, it's just that are conscious doesn't want to believe it.
A last example of why I'm not keen on you're many questions style.
When we are going to cross the road, our purpose is crystal clear:
"get to the other side safely"
Now let's see how many thigns happen when crossing a road.
- Put one foot in front of the other (walk)
- Look left
- Look right
- Listen for cars
- Find a clear space to cross where there are no parked cars
- Look
- Be aware
- Caluculate how long it will take to cross the road so that we don't get hit by a car
...and many many more intricacies, many of which are automatic and do not take much or any conscious effort.
Now imagine you came to a crossing an you're purpose was:
- Look right
Well that's nice but how far would it get you.You'd be stood there all day until you thought about looking left.Then you might think to yourself: "ok I think I'll listen now."
It just doesn't work.They're steps without any overall purpose.
"What is Habeas Corpus?"
is like asking.....
"what is crossing the road?"
Personally I think it is far better to say:
"I want to cross this road!"
and....
"I want to be a top lawyer in *this field*"
Remember! that the rest will follow as naturally as the steps taken when crossing the road.
Get that feeling of crossing the road and how you feel when you're listening for cars, looking and being aware.And then spare no more effort when becoming a lawyer as you would crossing the road.This example may seem stupid to some, but honestly, it's actually pretty much the same thing.
That is what it's about man, it's not really that complicated.Seriously over the few years I have been into this learning stuff the one main thing I have come to appreciate and to affirm to myself is that:
I gave things too much respect.
This is especially true with technical material.We think that "it must be hard otherwise it wouldn't be worth doing."
"Habeas Corpus" may be perceived as beign difficult because it's an uncommon phrase, but you know what: "it's just a word with a meaning" just like any other word, and we all know many words.
There are boundless possibilities out there, so don't get bogged down letting little details stand in your way.Life is far too short to sit in awe of what are in essence just words and meanings.Walk over them like you walk over the tarmac on the road.
Good luck! 
Cheers!