That's a lovely looking terrier.. I done the same I had a terrier off a old women who couldn't cope with him and he's turned out to be a brilliant little bushing dog all the best with the terrier where are you from any way Gaz_1989
Mate if a working terrier is on scent they will not come off that scent atall.. I wouldn't worry to much about that just keep taking the dog out and pu time into it