Is vague evidence reliable in a court?

Will a court rely upon evidence which is not certain - vague?

Courts have specific rules of evidence and those rules aren't always the same in every jurisdiction. Witnesses cannot testify to their opinions unless they qualify as an expert in the subject and they cannot testify to what somebody else told them for example. The issue is whether you know the information you are providing is true based on first hand knowledge. The farther it strays from that, the less likely it would be allowed.

No courts did not give much importance to vague evidences. Evidence should be clear and without any question of false or deception involve in it. Its depend upon the presentation of evidence and information involve in it.