I put it in my syllabus and run it by the department head before each quarter that anyone caught cheating in any way will immediately fail the class and be repo

I put it in my syllabus and run it by the department head before each quarter that anyone caught cheating in any way will immediately fail the class and be reported to the administration. I also emphasize it to the students at the start of each quarter. I've caught a few people cheating, but I usually fail them for the assignment instead of the class and spend extra time working with them to get their grades up. I've only had one repeat offender and I enforced the rule. The student came up to me a few months later and thanked me. Said it made him re-evaluate his commitment to school.