They do. All of them do.
Not true. In 25 states grand juries are optional for criminal indictments. CT and PA have abolished grand juries for criminal indictments. Others use grand juries for only certain types of crimes.
So, they obviously are not bound by the 5th Amendment grand jury provision that requires the federal government to use grand juries for felonies.
"The Fifth Amendment to the U.S. Constitution requires a grand jury indictment for federal criminal charges. Only about half the states now use grand juries." [ABA]
https://web.archive.org/web/2011042...org/2010/03/faqs-about-the-grand-jury-system/
 
	 
 
		 
 
		