Is defeating Cheating and endless Task?

I must wonder if it is impossible to stop cheating?

How many versions of a test must you create?

How vigilant must you be during the administration of a test or a quiz?

How much is too much?

Students who cheat with such sophistication are criminals. As criminals in all societies, (and I uphold that schools are a distinct culture), they have the need to be sanctioned by the society. The sanction allows redemption, most certainly, and the erasure of the stigma of the past.

I am just tired of cheating students. It really makes me sick.