Today, of course, the judicial system that has evolved from English common law is celebrated as a mighty achievement of modern civilization. Certainly, in the US, the six million individuals suffering from varying degrees of incarceration – the most anywhere in the world – might differ.
The US in particular has perfected a system of "justice" in which prisoners often find themselves incarcerated in penal institutions operated by for-profit private entities. These entities, in fact, may have contracts with the municipality that demands the town, city or state maintain prisons at a certain level of population.
Perhaps this explains why in the US especially there are so many miscarriages of justice and why DNA testing has led to the release of so many prisoners over the past decade. There have been notable releases of prisoners from death row, especially.