LandShark

Land sharks are sharks that have been genetacilly enhance, so they can life outside of the water.
First they were meant to replace police dogs, because as cybernetic enhancement on humans evolved and became a pretty common thing, normal police dogs became useless due to the lack of strength.
But the executive forces soon gave up on using Land sharks (Land Shak) instead of common dogs - It was very hard to teach them and almost impossible to control them: Instead of simply disarming/ stopping an enemy, the Shark tears it's enemy apart .. sometimes even eating the human bodyparts afterwards.
Nowadays Land Sharks only serve as pets. Mostly for decadent aristocrats, for whom they are a sign of wealth - or for gangster bosses in Nidr Sdt who use them to scare their rivals or opponents.