Baptiste was called in from Paris, and was involved in operations against Caid there.
Was he sent to CdeB because of his work against Caid, or was that chance?
I doubt Georges is running a pan-European, apparently Paris based, Romanian staffed criminal gang.
Now, he's funded by a property developer - I don't know what the rules for funding those in public office are in France. It is possible that he is simply a mildly corrupt public official who is lining his own pocket from little kick backs. He probably knew something about Ian's child abuse, but that does not necessarily mean he was involved.
But that scenario doesn't explain why a gang such as Caid has chosen CdeB as one of their bases. For Sieg was local and regularly retained by them, which suggests that they did have a consistent level of activity in the area.