Answer:
It increased the rights of accused criminals.
Step-by-step explanation:
The Warren Court oversaw one of the most important Supreme Court cases in history with its ruling in Miranda vs. Arizona. This case results in the creation of the Miranda warning. Based on this ruling Miranda (a man accused of a crime) was set free because the police officials did not inform him of his rights. This is why police officers list what rights citizens have when being put under arrest.