Big cats in Shropshire?

From the Shropshire Star:

They’ve been seen all over Shropshire and Mid Wales. There have been photographic images, shadowy CCTV images, and a whole host of convincing sightings by reliable witnesses which might give you the impression that the countryside is crawling with panthers, pumas, lynxes and other exotic big cats. 

But the question still hangs in the air. Where is the absolute proof that they exist?

The accompanying illustrations suggest it can be hard to tell the difference between a photograph of an ordinary domestic cat close to the camera and one of a big cat further away.