Thomson and Thompson
Thomson and Thompson had been sent to arrest Tintin and took him to the local police station in order to start extradition proceedings. However, they had lost a document written in Chinese which instructed the local police to give them assistance. Chang replaced the paper with another one which claimed that Thomson and Thompson were "lunatics and this proves it". When he read the document, the chief of police roared with laughter, then he had Thomson and Thompson thrown out and Tintin released.