They might be good people but still be horrible cops. But being horrible cops means they must not be cops. Would you have such an accepting stance on teachers

They might be good people but still be horrible cops. But being horrible cops means they must not be cops. Would you have such an accepting stance on teachers refusing to turn in a rapist teacher? Betraying a trust must mean you lose your position immediately, but it must also cost enough to make it honestly unattractive. By not having strong and effective punishments for this we create perverse incentives to betray others.