I know it doesn’t but we brought the dangerous animals act in, in 1976 which led to zoos being inundated with unwanted animals and when they couldn’t accommodate them the options were take them to the vet and have them pts I or take them to a desolate place and turn them loose, which was not illegal until 1983 hence the beast of Bodmin,Dartmoor,exmoor the Cotswolds etc Ireland only came in line in 2004 which would probably lead to a similar situation, the big question is did some of these animals breed and start a naturalising population or are people still releasing them, from what I’ve seen