I desperately need help and advice please. My ex partner left our family last month, he basically chooses the party life over his kids. I have since found out that he has been taking drugs on a regular basis behind our back and has therefore must have been under the influence at times when looking after my kids. Now I don’t want to stop him seeing the kids, but I can’t help but worry about their safety. Can anyone help me on what I can do. Can I get him drug tested on a regular basis?