Pretty badly written introduction. 

Namely that the writer seems more interested in writing about common law than civil law. While I am sure some degree of comparison is very useful, if not necessary, I don't think that going to great lengts to explain what common law is and then just say "and civil law is not like this" is a very good way of defining civil law.

The 4th paragraph in the intro (the largest one) is the main culprit here. In fact the third sentence in it doesn't even follow on properly from the first two and should logically read pretty much the opposite of what it does. In addition it seems to be be very US-centric: while it mentions English Common Law, it then goes on to list examples of basic tenets of this which seem to be drawn directly from the US Constitution.

So I think it's pretty badly written as an introduction, but as I don't know too much about the subject I don't really want to go about editing it myself.