officer was not acting in the lawful discharge of his official duties when he commanded Green to come speak with him. See generally Ewumi v. State, 315 Ga. App. 656, 658 (1) (727 SE2d 257) (2012) (describing circumstances in which a citizen may walk or even run from a law enforcement officer). By expressly challenging whether the officer was lawfully discharging his official duties in their encounter, Green implicitly challenged his own knowledge that the officer’s commands to him were lawful. Indeed, Green’s counsel argued at trial that, because the officer made no lawful commands to Green, the state could not show that Green had the knowledge required by the statute for the offense of misdemeanor obstruction. See Thomas v. State, 322 Ga. App. 734, 738 (2) (b) (746 SE2d 216) (2013) (<HOLDING>); Gibson v. State, 265 Ga. App. 325, 328 (593
holding that a capital defendant is mentally competent to abandon any and all challenges to his or her death sentence including appeals state postconviction collateral review and federal habeas corpus if he or she has the mental capacity to understand the choice between life and death and to make a knowing and intelligent decision not to pursue further remedies holding that an individual can waive any process to which he or she has a right holding that defendants disobedience cannot have been knowing and wilful if officer has not made clear to defendant that he or she was compelled to obey holding that defendant was seized where the officer told defendant that she knew that he was on probation defendant admitted to the officer that he had given her a false name and defendant was asked for consent to search a backpack because a reasonable inference was that defendant was the subject of a continuing investigation and his or her freedom of movement had been significantly restricted by the officers show of authority holding that a person has standing to bring suit under the civil rights act if she or he can show that she or he was punished for trying to vindicate the rights of minorities