The Brethren by John Grisham

A novel about three judges from a minimum security prison that are using extortion to get money from older homosexuals. They post ads in a gay magazine to fish for victims. Unfortunately, they pick CIA‘s candidate for the next presidential elections.

In theory, it should be a law-related novel, but the only link to law are the 3 judges and their lawyer. To me it looks like a normal mystery novel.