Just to be clear, proof isn't always needed. First you need both sides of the story, however one of them might not say the truth, which is why we would require proof, as there is a difference in the 2 stories.

Just to be clear, proof isn't always needed. First you need both sides of the story, however one of them might not say the truth, which is why we would require proof, as there is a difference in the 2 stories.