I'm really quite shocked to learn this and the cheif constable needs to take some responsibility................

It's an island in the middle of the Irish sea how hard can it be to catch these guys bringing the drugs in.
It's fair to say that not once have I ever heard of anyone being caught bringing drugs into the IOM and it's very often not too hard to spot the big dealers living a lifestyle with no visible means of support.

Plenty of them here

I'm prepared to bet tha the IOM does NOT have assets recovery where the property and cash generated from drug dealers can be removed.

There is very much more to this than meets the eye