How did Jack Reacher come to be in Margrave? Who gave him the information that took him there?

Why is Jack arrested on his first day in Margrave? Who does he end up in the state facility with and protect over the weekend, and why? What 'mistake' is made when they arrive at the prison and by whom?

Two people in the Margrave police department begin to see that Jack could not have been involved. Who are they, and what clues lead them to believe that Jack is telling the truth?

Why didn't the earlier attempt to undermine the German economy with counterfeit money work? What did the German people do instead? What were the two most common monetary replacements?

What is the most difficult part of counterfeiting American money? Why is it such a hurdle? What separates US currency from any other country's...