Three young kids--Julian, his little brother Huey, and best friend Gloria, look through the Most-Wanted posters at the post office. They decide they'd like to investigate crimes and criminals. Later, in a parking lot, they see a dog locked in a hot car. A passerby says, "That's a crime!" and they know their calling has begun. Afterwards, they rescue a lost toddler from playing too near a water fountain. This story is too funny because the kids are so innocent: they go to a bar to look for crime, and are spotted by someone who knows their dad. Oh, boy, are they in trouble now! Next, a young man working in a fast food shop matches the description on a Most Wanted poster. They go to the police chief, who in turn, asks them for help in identifying this possible criminal, who turns out to be the chief's son! This delightful story is well-written, realistic and interesting, and depicts characters still in the wonderful freshness of youth. A beginning chapter book for hungry early readers, Diane Allison's illustrations help depict the African-American neighborhood, such as a scene in the park under the MLK statue.