She needs to have a word with one of her colleagues who deal with this type of behaviour , I am sure a police officer can get into serious trouble for doing this also with the sites he is visiting , your daughter has taken the first step in talking & telling you, which must have been so hard, bless her, she needs your support, this can eventually have more consequences like loosing her home, even more aswell ... Google about gambling & police officers ... no doubt affecting her health aswell, no doubt possibly yours aswell ... when you daughter hurts you do aswell