Want to add that suicide issues can come up with any patient. Here we are talking about people who have frequent suicidal ideation and behavior. But it would be nonsense to say that a therapist would not have any expertise in dealing with suicide. Like what's she gonna do, have a patient sign a paper that they will never talk about suicide?! Suicide related concerns are quite common in therapy and all therapists need to know the basics about how to handle the situation.