This is no big thing, but I think the people in charge would be more careful about certain facts to be efficient. In the old classic movie, The Spiral Staircase. There is a scene where George Brent is talking to a sheriff his brother comes into the room. When George Brent introduces him he refers to him as my step-brother, Stephen. In another scene, it has already been established that they have the same fathers, different mothers. This means he's a half brother not a step brother. Step siblings have no blood connection.