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Traffic violations have been observed at a crossroad at the sub-urban Bangkok area, four days before and four days after an installation of a full-size standing patrol police officer model with full police dress. Observation is made in the afternoon and in the evening, two hours each. Three violation types are observed, driving against traffic flow, traffic light violations, and no U-turn violations. We find that the puppet police works well during the first few days of the installation, and then its effectiveness decreases in later days. During four days of installation of the puppet police, the overall violations drop about twenty percent.
Keywords: Dummy Police; Driving against traffic flow; Red light violations; no U-turn violations; THAILAND.