What is the author's style in Heaven's Prisoners by James Lee Burke?

The novel features a rich and textured language derived from mainstream crime thriller narratives touched with Cajun and street slang. Several passages are presented in Cajun French, usually with English translation, and most dialogue is gritty and believable. The novel presents numerous profanities, usually delivered through dialogue, and numerous graphic descriptions of violence, sex, and sexual situations. Scenes of beatings, murder, sexual mutilation and sexual murder, and prostitution are presented.