A father is asking for advice on how to regain custody of his children who have been living with their mother for three years. He wants to know if he can forcibly take them and what the legal repercussions might be, as there are no existing court orders. The advice given is that he cannot forcibly take the children and doing so could lead to criminal charges and jail time, especially as the children have been living with their mother willingly. It is strongly recommended to consult a local solicitor for professional guidance.