But outside of those cold walls, the prisoner of Belfast found a voice.
In all, around 300,000 people signed a petition demanding the dog's release. The swell of support for Hank captured headlines around the world.
And on July 28, the Belfast City Council announced it would give Hank an exemption.
"This means that, although assessed by an appropriate expert to be a pit bull terrier type, he can be returned to his owners, following court approval with conditions, most of which are mandatory under this legislation," the council noted in a release sent to The Dodo.