I once did that (driving an Alembic from EU "across" Switzerland) and with the intention of selling it... I had to drive through Genève, but sold the bass in France. So no questions needed to be answered :-)
Btw: I asked, because of the very Dutch sounding name.
I haven't been successful getting in contact with Newsted, tried several times... But it never hurts to try, wouldn't know where to start no though... (he has disappeared from all social media sites for a while now)
I don't think it's the same bass as in the first picture, that looks to have more knobs (most likely the 3 x Volume + filter setup)
I suspect the bass next to the Anniversary in the second pic might be a JPJ Spoiler/Persuader, could it be yours? Who will tell?
Apparently he had at least two basses made for each model he ordered (one extra for backup)
Yours could also be a reject, because of the electronics? (since I suspect I've only seen him with the multi knob versions)
Your bass has a single Volume and Filter, the switch is for the side Leds?
In the controls cavity, there's an extra board that has the connectors for all pickups. Very interesting stuff!
We love lots of pictures here! :-) Showcase is the best place:
https://club.alembic.com/index.php?board=687.0 I would love to see a pic of the back :-)