Of course not - but you are suggesting that he must have KNOWN they were innocent at the time?
Hypothetical question. Let's say both Priti Patel and Jeremy Corbyn are judges. If you were innocent, who would you rather be tried by? What's the betting that, as an innocent person, you've got far more chance of being found guilty in a trial presided over by Patel than you have in one presided over by Corbyn? Does that translate in to Patel knowingly convicting innocent people? Not necessarily.