The encounter with the Ernesto Miranda proved that the world needed to hear the rights out loud during an arrest. If these rights were not encountered criminals would be able to loophole there way out of trouble no matter the circumstance or situation.
Miranda rights were just something people saw as a waste of time when really it caused this huge problem with Ernesto Miranda. The Miranda rights was only encountered when it became in 1966 when Ernesto Miranda decided to rape and be involved in violence and then was caught, when he was arrested the officer who arrested him decided or maybe forgot to say the Miranda rights that are mandatory to be said.