There have been 3 dog crimes only:

A. Two kids attacked in Windsor Great Park.
B. Queen's corgi killed.
C. Royal maid bit on knee.

Lottie we know did the first,had she also done the second she would be put down.
So, suddenly they report that the second attack was actually done by Florence.
So both dogs have one offence apiece, and neither get put down.

However, Florence, obviously having no sense of timing, went and sunk her gnashers into Royal Maidy yesterday...
So Florence now has two convictions, and Lottie only the one.
Which is technically a dangerous dog, and half a dangerous dog.
Like someone pointed out above, had these dogs been owned by mere mortals, they would be far removed from this mortal coil by now.