Nile Dok

Commander Nile Dok (ナイル・ドーク師団長) is the chief of the Military Police. Nile Dok appears at the trial of Eren Yeager, where he planned to have Eren studied and then killed.

Plot
Although Dok did purposely try to kill Eren, he analyzed and weighed the different pros and cons of Eren before making his final decision. He recognized that Eren's Titan powers had saved Trost District, but threaten the balance of power within human society. While mainly business and Wall Rose residents support Eren, most people of importance such as the clergy, view Eren as a danger. Thus, Dok concludes that to avoid civil war, Eren must not be allowed to live.

He would later learn from the Commander Erwin Smith that Annie Leonhart was the female Titan and that Wall Shina has been breached. Going by his suspicions, Dok ordered Marlowe, Hitch and the other members to assist the Survey Corps in capturing Annie.

The meeting for Eren's judgement is put on hold when Smith and Dok were ordered to attend a meeting to discuss the recent turn of events. However, they learn that Wall Rose has been breached and rush to investigate.