DUE PROCESS
PorcoRosso
Whilst I appreciate what you say, and why you are saying it, at the end of the day, it is a question of evidence.
If the vital ingredients are present, then the matter may be able to proceed as you describe.
If allegations are made, the evidence must be produced to substantiate any claim.
If the police in the UK are satisfied, then a file is sent to the CPS for their consideration.