Great Sheepdog Swindle - Police Dog 99 Author:Keith Brumpton The third in a series of whodunnits for the just fluent reader. Who's nobbling the dogs at the sheepdog trial? Only Police Dog 99, "Rusty", with his sharp canine brain can solve the crime with a little help from PC Andy Constable. Jokes, maps and clues help the reader spot the villian first.