It isn’t just the Judicial system that is corrupt, the laws themselves are corrupt. Poorly written, unevenly enforced, unfair and unjust.
Laws frequently, hastily, written reactively in response to pubic and media outrage to some newsworthy event. Draconian sentences for light crimes while other more serious crimes carry much lighter sentences. Sentences are imposed on the whims of a judge. The same crime can result in vastly different punishments (or no punishment) depending which judge you get (even in the same courthouse) or which jurisdiction you’re in. Judges who are frequently highly unqualified and/or biased to judge.
And all this is even before discussing the perversion of Justice based on who one’s legal counsel is. Is it real justice that in order to obtain true justice one needs the ability to afford very costly legal representation? How can you call it a justice system when an accused guilty rich man with a top lawyer can get away with a crime whereas an innocent poor man who cannot afford counsel can get convicted due to lack of decent legal representation?