What is the test for arresting a minor who runs away from a police officer?

has reasonable cause for believing that such minor is a person described in Section . . . 602." (Welf. & Inst. Code, 625.) Thus, Officer Parcher only needed reasonable cause, not probable cause, to arrest minor. Minor was aware that Officer Parcher wanted to detain him since Parcher identified himself as an officer and told him to have a seat; yet, minor looked at him and ran away. Minor's flight from the officer delayed the officer's performance of his official duty. (See People v. Allen (1980) 109 Cal.App.3d 981, 985-986.) Officer Parcher clearly had reasonable cause to believe that minor had willfully resisted him. (Pen. Code, 148, subd. (a).)