[dfwright]

it would prove my innocence if falsely accused of being somewhere I wasn’t

Technically, it only proves your phone wasn't there. You could have given your phone to someone else to carry around while you were elsewhere.

[cuban leaf]

Technically, it only proves your phone wasn’t there. You could have given your phone to someone else to carry around while you were elsewhere.

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True. Same argument could be made if it shows I WAS there. It’s not conclusive, but it makes the prosecution’s case tougher. But that’s the case with most evidence.

It’s better to have it, than not have it, though.