I know somewhere it's mentioned that Luna Lovegood's mother liked to invent spells, and we know of a few wizards and witches who did so.

How do you think spells are invented within the Ministry? Do you think there's a place in the Department Of Mysteries where they are tested, or would there be another department? I kind of want it to be a different department but cannot think where else it would slot in.

How would they "tell" people about new spells? Do you think most new spells would be invented by non-government companies for their product and therefore not reach the wider wizarding public at the basic level of what spells were created for said product?

Any ideas/ theories would be great-

Alex x