The courtroom is one instance of the fact that while our society may be liberal and democratic in some large and vague sense, its moving parts, its smaller chambers--its classrooms, its workplaces, its corporate boardrooms, its jails, its military barracks--are flagrantly undemocratic, dominated by one commanding person or a tiny elite of power.
Concentration is a cornerstone of mindfulness practice. Your mindfulness will only be as robust as the capacity of your mind to be calm and stable. Without calmness, the mirror of mindfulness will have an agitated and choppy surface and will not be able to reflect things with any accuracy.