The other day was "journée des viticulteurs" - expression from the newspaper l'Union - at the court in Reims. Therefore I now know a bit more about, how much the judges assess different offences at.
Neighbours and family
You could ask yourself, how the authorities get to know such details. One of the answers is that neighours, family and friends, turned unfriendly for whatever reason, report irregularities or even illegalities. That is also the case in Villers-Allerand.
In a slightly different category I remember, how a company, hired to do the vendage some years ago, began to harvest the grapes in one plot a couple of days early. Different dates for different grapes were confused by mistake. These grapes were eventually all scrapped.
This way of blunt and sure settling is also a way to keep the morale and quality up.