From a practical perspective, it's hard to wish for or imagine a legal system that doesn't rely upon judicial interpretation of intent. An example would be causing the death of another human being. Would you want all four of these incidents to be treated the same from a legal perspective?

- A surgery, which is known to have a 50/50 chance of success even at the hands of an excellent surgeon, goes poorly and the patient dies.

- A serial killer spends six months plotting the murder of his victim before executing them.

- A shoving match breaks out at a bar. Somebody slips, falls, hits their head on the ground, and dies.

- You accidentally frighten somebody by sneezing in a quiet library. They have a heart attack and die.

From a purely logical perspective, these are literally the same thing. A person dies! Realistically speaking, any legal system needs to consider intent.