In the 1950,s you were able to get a substance called "Dack"from the Chemist,or the Ironmonger,..it was a thick treacle like substance, that when spread on a piece of wood or cardboard,with a bit of cheese in the middle,..stopped mice in there tracks so to speak, another alternative, was the way my late Dad,got rid of them,...it may have been a bit cruel, ...but it did the job,..e.g. catch mouse,then hold white hot poker in front of its eyes,..= one blind mouse,then release,result no more mice,..poor little begger must have went back to its mates, and told them about the Big Mad Ukrainian that was hunched over the open fire,with a white hot poker clasped in his shovel like hands,