The Policeman's DaughterBy: Trudy Nan Boyce Series: A Detective Sarah Alt Novel From author Trudy Nan Boyce, whose police procedural debut was hailed as "authentic" (NYTBR) and "exceptional" (Milwaukee Journal Sentinel), returns with a stunning prequel to the Detective Salt series, the story behind the case that earned Salt her promotion to homicide. At the beginning of her career, Sarah "Salt" Alt was a beat cop in Atlanta's poorest, most violent housing project, The Homes.