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It is assumed that this will not happen if you don't have criminal thoughts, just like most people. And if it does happen, you simply go to a psychologist a couple of times, and everything is fine. That is, 98% of the population shouldn't worry about it, just as you and I don't walk down the street thinking, "What if I do something crazy and get arrested?!"
Of course, this doesn't apply to investigators and other people in "difficult" jobs.
Another matter is the overall psychological profile and various recommendations for hiring, and concern about this seems quite logical.