When you're accused of a crime, you deserve the right to defend yourself. What if the people who are supposed to listen to you don't? It's rare that a case is really as black-and-white as it looks, and there is no reason that you should be seen as guilty before being proven so.
With cases where you're being charged with the solicitation of a minor online, it can be frustrating to try to prove that it wasn't you or that alleged evidence was taken out of context. The main question you're probably asking yourself is if the evidence that the police say they have is really enough to accuse you of such a serious sex crime. If your case is balanced on only a piece or two of tentative evidence, that's when you need to make sure you're being defended properly. If there isn't enough evidence, the cause should be dismissed.