"Well, they had a lot of the things they found in his possession. They had the map, you know, that marked the route of the parade. They had statements from the bus driver and the taxicab driver that hauled him somewhere"

Henry Wade is referring to a criminal examination. The police had collected proof from the suspect's belongings, such as a map that marked the route of the parade. They also had statements from the bus chauffeur and the taxicab motorist that had transported the suspect. This evidence was likely used to construct a case versus the suspect and to determine his participation in the criminal activity. The quote suggests that the police had adequate evidence to make a strong case versus the suspect. It likewise recommends that the suspect had been associated with the criminal activity, as the police had collected evidence that connected him to it.