Duckworth was in the process of being booked when he made a sound which Broaderick interpreted as an intention to spit on him.
Broaderick responded by slamming Duckworth into the wall and exclaiming, "You don't spit at officers."
The violent outburst left a visible streak of blood on the wall behind Duckworth.
The officers then engage in a conversation over Duckworth's true intention, leading Broaderick to realize his error.
An effort is then made to treat Duckworth's injuries.
Marion County has since placed Broaderick on unpaid leave pending the result of an excessive force investigation.