When facts not otherwise relevant become relevant

(a) The question is, whether A committed a crime at Chennai on a certain day. The fact that, on that day, A was at Ladakh is relevant. The fact that, near the time when the crime was committed, A was at a distance from the place where it was committed, which would render it highly improbable, though not impossible, that he committed it, is relevant.

(b) The question is, whether A committed a crime. The circumstances are such that the crime must have been committed either by A, B, C or D. Every fact which shows that the crime could have been committed by no one else, and that it was not committed by either B, C or D, is relevant.