"innocence until proven guilty has no veracity in a court of law" is not grounds for an appeal. A criminal court requires proof beyond reasonable doubt. A magistrate's court only requires the preponderance of evidence. If you are not guilty, but someone wants to abuse the legal system against you, then the accusation will change from crime (prosecution by the state in front of a judge with some legal qualifications) to civil offence (prosecution by an individual or company in front of a magistrate), and the evidence will be "because I said so".
"Innocent until proven guilty" is the wrong target anyway. We should be aiming for "innocent unless proven guilty". In real life, we have bail conditions which are a sentence against the accused before any evidence is heard.