Larry, in your most recent post, as regards #2:

My point was this: the argument that their knowledge that she was a traveller made them suspect she was a criminal is illogical because the reason they knew she was a traveller is that they had previously caught her shoplifting. This is not according to me, but according to one of the posters in part two who was agreeing with your position. If this is the case, they did not assume she was a criminal because she was a traveller, they learned she was a traveller because she was a criminal!

Thus, it is far more likely that they were suspicious of her this time based on her prior crime, than based on her ethnicity. After all, they could not tell by looking at her that she was a traveller, and would never have found out if they hadn't had to investigate her.