I agree that when a student cheats he breaks my trust.
But I don't want to throw that student out. Maybe this is why he does it. So after the first time I will talk with him being very careful that I don't outright accuse him but mention what I believe.
Then we try together to find out why. What does it think is his problem and why would he risk his reputation to do this.
Hopefully at the end we can make a plan and change his behavior.
Robin Jonas