As long as their is no judicial warrant for his arrest or a judicial offence he's committed, he can go where he like, the sentence he got in England is as far as I know a civil/commercial matter not a judicial one. If judicial fraud is detected then it becomes another matter. The victims of a "judicial scam" can file a complaint of fraud in their own country. Then it becomes a whole other ball game. Although the crime is committed outside Europe, Europeans can file a complaint against another European. It might not solve the problem but would cause a lot of problems for the offender.