Habeas Corpus is Monk's pet pig and is occasionally brought on missions with monk. He belongs to a pecular and unspecified breed, being small, razorbacked, dog-like legs and ears large enough to pass for wings. Monk purchased the pig from a farmer for four cents. Due to intensive training at the hands of Monk he is said to possess near-human intelligence. He will obediantly follow every command given to him. During an adventure with Monk he will normally serve the function of a hound dog, following scents and occasionally attacking a potental threat. Apart from his practical use, Monk also likes to bring him because he knows it annoys Ham.