Is it just a child rapist, who there is video evidence commuting the crime, gets to walk free because they can’t find the victim to testify in court? And yes, that is the law in some countries. The uk had to wait for someone to come back to the uk because they could convict without the victims but the country he committed the crime couldn’t.
And it’s only not obvious that he‘s responsible for a lot of pain and suffering when you ignore the facts. The accused doesn’t need to give their side of the story for people to know what happened.