Third session in and I have made practicing unlicensed magic in private a bit like the cycling on the pavement law in the UK - it's a crime but how many people actually get arrested for it?
Ergo. We know it goes on and its not advertised but we are unlikely to arrest you for it if it is discreet and done responsibly. This law exists to keep the church happy and so that if we want to arrest you for something we can - to the Bobby on the street Order being far more valuable then law.
In my third session "Neighborhood Witch" there is a ancient cranky old witch who currently seems harmless.
Smirk ... so obviously they suspect she's blofeld!