CET: The answer is "no". As I tried to explain in an earlier post, there are guilty findings and not guilty findings. There is nothing else. Using the standard of proof beyond a reasonable doubt, and there is no other standard

Just a couple of points of fact here:

In Scotland there is a "Not Proven" verdict, which is basically "we think (s)he did it but the required level of proof hasn't been reached".

And there is also another standard of proof in common use in the UK, that of "on the balance of probabilities". OK, it's applied in less serious cases than murder, usually civil rather than criminal ones, but it exists, and the level of proof required is lower than for "reasonable doubt".