I like this answer because it says it will require someone with specific knowledge and specific training doing a specific job anyway...

Also "anyway" a specification is always incomplete. It's part of the programmers' job to fill the gaps with something sensible, and when they have no idea what to do, to point out that some corner case was overlooked.

This is where programmers sometimes start to feel like Lieutenant Columbo: at first everyone is nice, but people become more and more irritated as the pesky cop asks more and more embarrassing questions.