Disclaimer: I am not thinking of actually doing this. This is just a random shower thought that I had.
I am a non-tenured adjunct instructor. Would I be disciplined or lose my job if I announced to my class that I was offering a $100 cash reward for any information about cheating taking place in the class? If someone did bring me information and I followed through and gave them $100, would that change anything? This would be my own money out of my own pocket.
I realize that different institutions have different policies, so there may not be a single correct answer. I'd be interested in whatever perspective you have to offer.
Note that I'm not asking whether this is a good idea, whether it's socially acceptable, whether it would upset the students or my colleagues, or even whether it's ethical — only whether I would face disciplinary action for doing it.