Instruct: Classify the given review into positive or negative sentiment.
Query: The greatest police procedural ever written. Gritty!

The drab, dangerous and often funny details of police work give One Police Plaza a hard-boiled realism. Caunitz shows how government hacks, Mafiosi, reporters, spies and even New York's Catholic Diocese are linked to the cops and each other by a system of favors Malone's manipulation of his superiors and his relentless dedication give this novel the page-turning pull we expect from a good thriller. Its special strength is its carefully exacting depiction of what the working life of a big city police department really is like. With the same bold clarity that served him as a New York City police detective, first-novelist Caunitz delivers a powerful tale of murder and espionage. . . Caunitz expertly depicts the stark reality of the police officer's life and work, and his hard-edged prose drives the story to a stunning conclusion.