If one is presumed innocent at every stage, how can anyone be charged of a crime to begin with?
Is the "presumption of innocence" confined to the trial stage?
As far as I know, this is the second time you've asked this question. You really think you are somehow being clever here, right?
Apparently, you have still not understood that you can be suspected of having committed a crime, and even be arrested and charged for it, while at the same time being considered legally presumed innocent until proven guilty in court.