"Open your mouth, judge righteously, and render justice for the poor and indigent" Proverbs 31:9
The fourteenth book,
Sefer Shoftim
The Book of Judges
It contains five halachot. They are: Hilchot Sanhedrin V'HaOnshin Hamesurim Lahem - The laws of the courts and the penalties placed under their jurisdiction
Hilchot Edut - The laws of witnesses
Hilchot Mamrim - The laws of the rebellious ones
Hilchot Evel - The laws of mourning
Hilchot Melachim UMilchamotehem - The laws of kings and their wars