Moles are extremely territorial, except in the mating season, so you probably only have one mole.
Find a new mole hill and simply remove soil and fit a trap in the run.
If fitting the vertical scissor type trap, you will know from just looking at it if it has sprung, but no guarantee that you have a catch.
I have found that any thing but a kill is the only way that really works.
Have a read here: http://www.molecatch...t_the_mole.html