Start with high-confidence courts & judicial system books, then narrow by subgenre or adjacent topics.
Justice on the Brink
Linda Greenhouse
Courtroom 302
Steve Bogira
A Civil Action
Jonathan Harr
Ladies and Gentlemen of the Jury
Michael S Lief, Ben Bycel
The Brethren
Bob Woodward, Scott Armstrong
The Battle for the Court
Lawrence Baum, David Klein