I don't
ideally police work should be preventive
(like preventing medicine)
to often though, police work is done by people who are not qualified for it
(like doctors who prescribe the wrong medicine, or cut the wrong limb, sometimes even on the wrong patient)
that is a problem that should be addressed with education not abstinence,
punishing a crime after the act, can leave a family broken, a property stollen…
practice will make perfect
hopefully, prevention will become perfect before crime will
but if we only let criminals practice, non criminals will be in a lot more of trouble than they/[we?] are now