Meanings of solvable case in English

I commented that that was too bad, because from what I'd read and heard, it sounded like a solvable case.

Her killer has never been found but the police's Auckland crime manager, Uraia Vakaruru, says this is still a solvable case.

Normally the Bureau handles a handful of diversified cases of blackmail, and a very small percentage of those pan out into legitimate and solvable cases.