Of course, being a tree warden isn’t all that strenuous. He never had to worry much about an escape.
“We also have bounders who check that the BOARDERS of the town have not been infringed on”.
So, these bounders check up on the people eating and or staying at a boarding house?
Or, do they check to make sure the BORDERS of the town are not infringed upon?
I suspect the latter. Hence the name “bounder” for boundary.