Answer:
The official investigation described the behavior of the police on the streets of Chicago as a “police riot”.
Explanation:
In August 28, 1968 was the day that a “police riot” took place at the Democratic National Convention held in Chicago, Illinois. The convention happened during August 26-29 and the Walker Report - which was a special commission appointed to investigate the protests - came out with the title. It was also said that “The nature of the [police response] response was unrestrained and indiscriminate police violence on many occasions […]”.
