Chief Spencer W. Karpinsky is a Zootopian Helicoprion bessonowi from the underground land of Dinosica. He is a spiral-jawed shark and the chief of police for the Paleozoic District's Permian Sector in the sea division. Though his anger and constant seriousness as well his insistence on having people respect the law makes him severely untrustworthy, it's all just so he could be respected since his species was feared and mocked for their spiral jaws, especially when he picked the wrong person to be his partner, the uncourteous and strict coelacanth named Officer Coeur.

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