It's not. English common law is innocent until proven guilty. The legal system is guilty until proven innocent.
When a police officer charges you and you sign the bail sheet, you are agreeing to their terms and accept you are guilty and that you have to prove your innocence in a court. That is a legal process.
You literally sign away your common law rights and enter their man made (legal) system.
Not many people know this anymore because they conveniently no longer teach it in public education.
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