During the Seige of Paris in 1871 high prices were paid for "Roof Rabbit" as cats were nick-named. My late mother told me that during WW2 the local women would not buy rabbits from the butcher if it had it's head, paws and fur removed. Such an animal could have been a cat. Feline cookery has a long pedigree.
The authorities are running round like headless chickens, or is that cats? The RSPCA are to be called in to deal with "Animal cruelty" even though the council, using health regulations, has immense power to enter premises and search/inspect them. As we all know from watching the BBC's "Call the Council". All that is needed is a couple of swabs from each Restaurant and then DNA tests for Feline DNA. "They" have spent similar amounts of time and effort to pursue on-line "racists" so let the authorities spend a little of that effort on a genuine problem.
Of course, a local squad of jihadist ISIS members could be responsible, working their way up from cats to dogs then humans, but unlikely. Cats scratch and the jihadists like easy targets.