1. Assessment is only a small part of teaching. Often the smallest.

2. The pedagogical intervention depends heavily on whether the student is cheating or just FAR below grade-level.

3. the student likely won't be truthful.

4. Even if we assume the student will tell the truth, if they aren't using an LLM and you accuse them of doing so it's going to crush the student and make teaching that pupil close to impossible.

Teachers are teachers, not proctors.

A tool would be useful so that the teacher can avoid wasting their time reading an AI generated submission and continue on to the next essay.

Well yes ideally I would do so, but my chair of department wants to have THAT work published. Horror story.